69426538257 has 8 divisors (see below), whose sum is σ = 93872502720. Its totient is φ = 45632466320.

The previous prime is 69426538253. The next prime is 69426538267. The reversal of 69426538257 is 75283562496.

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

It is a cyclic number.

It is not a de Polignac number, because 69426538257 - 2² = 69426538253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69426538197 and 69426538206.

It is not an unprimeable number, because it can be changed into a prime (69426538253) 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, 162972882 + ... + 162973307.

It is an arithmetic number, because the mean of its divisors is an integer number (11734062840).

Almost surely, 2^69426538257 is an apocalyptic number.

It is an amenable number.

69426538257 is a deficient number, since it is larger than the sum of its proper divisors (24445964463).

69426538257 is a wasteful number, since it uses less digits than its factorization.

69426538257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325946263.

The product of its digits is 21772800, while the sum is 57.

The spelling of 69426538257 in words is "sixty-nine billion, four hundred twenty-six million, five hundred thirty-eight thousand, two hundred fifty-seven".