2879450781 has 8 divisors (see below), whose sum is σ = 3839515680. Its totient is φ = 1919509872.

The previous prime is 2879450767. The next prime is 2879450789. The reversal of 2879450781 is 1870549782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2879450781 - 2¹⁵ = 2879418013 is a prime.

It is a super-2 number, since 2×2879450781² = 16582473600403019922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2879450789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74106 + ... + 106068.

It is an arithmetic number, because the mean of its divisors is an integer number (479939460).

Almost surely, 2^2879450781 is an apocalyptic number.

It is an amenable number.

2879450781 is a deficient number, since it is larger than the sum of its proper divisors (960064899).

2879450781 is a wasteful number, since it uses less digits than its factorization.

2879450781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61995.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The square root of 2879450781 is about 53660.5141701046. The cubic root of 2879450781 is about 1422.6668756120. Note that the first 3 decimals are identical.

The spelling of 2879450781 in words is "two billion, eight hundred seventy-nine million, four hundred fifty thousand, seven hundred eighty-one".