5265720691 has 8 divisors (see below), whose sum is σ = 6565054464. Its totient is φ = 4103158920.

The previous prime is 5265720683. The next prime is 5265720697. The reversal of 5265720691 is 1960275625.

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

It is not a de Polignac number, because 5265720691 - 2³ = 5265720683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5265720697) 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, 34192915 + ... + 34193068.

It is an arithmetic number, because the mean of its divisors is an integer number (820631808).

Almost surely, 2^5265720691 is an apocalyptic number.

5265720691 is a deficient number, since it is larger than the sum of its proper divisors (1299333773).

5265720691 is a wasteful number, since it uses less digits than its factorization.

5265720691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68386001.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 5265720691 is about 72565.2857156919. The cubic root of 5265720691 is about 1739.7463728400.

The spelling of 5265720691 in words is "five billion, two hundred sixty-five million, seven hundred twenty thousand, six hundred ninety-one".