7216512357 has 8 divisors (see below), whose sum is σ = 9623529760. Its totient is φ = 4810251600.

The previous prime is 7216512343. The next prime is 7216512389. The reversal of 7216512357 is 7532156127.

It is a happy number.

7216512357 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7216512357 - 2⁶ = 7216512293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7216512397) 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, 166519 + ... + 205332.

It is an arithmetic number, because the mean of its divisors is an integer number (1202941220).

Almost surely, 2^7216512357 is an apocalyptic number.

It is an amenable number.

7216512357 is a deficient number, since it is larger than the sum of its proper divisors (2407017403).

7216512357 is a wasteful number, since it uses less digits than its factorization.

7216512357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378323.

The product of its digits is 88200, while the sum is 39.

The square root of 7216512357 is about 84950.0580164605. The cubic root of 7216512357 is about 1932.4538000890.

The spelling of 7216512357 in words is "seven billion, two hundred sixteen million, five hundred twelve thousand, three hundred fifty-seven".