6957420729 has 8 divisors (see below), whose sum is σ = 10601784000. Its totient is φ = 3975668976.

The previous prime is 6957420721. The next prime is 6957420781. The reversal of 6957420729 is 9270247596.

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

It is not a de Polignac number, because 6957420729 - 2³ = 6957420721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6957420721) 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, 165652854 + ... + 165652895.

It is an arithmetic number, because the mean of its divisors is an integer number (1325223000).

Almost surely, 2^6957420729 is an apocalyptic number.

It is an amenable number.

6957420729 is a deficient number, since it is larger than the sum of its proper divisors (3644363271).

6957420729 is a wasteful number, since it uses less digits than its factorization.

6957420729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331305759.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 6957420729 is about 83411.1547036726. The cubic root of 6957420729 is about 1909.0446625435.

The spelling of 6957420729 in words is "six billion, nine hundred fifty-seven million, four hundred twenty thousand, seven hundred twenty-nine".