69668631057 has 8 divisors (see below), whose sum is σ = 94163994784. Its totient is φ = 45809510688.

The previous prime is 69668631037. The next prime is 69668631079. The reversal of 69668631057 is 75013686696.

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

It is not a de Polignac number, because 69668631057 - 2¹⁹ = 69668106769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69668630988 and 69668631006.

It is not an unprimeable number, because it can be changed into a prime (69668631037) 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, 159060583 + ... + 159061020.

It is an arithmetic number, because the mean of its divisors is an integer number (11770499348).

Almost surely, 2^69668631057 is an apocalyptic number.

It is an amenable number.

69668631057 is a deficient number, since it is larger than the sum of its proper divisors (24495363727).

69668631057 is a wasteful number, since it uses less digits than its factorization.

69668631057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318121679.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 69668631057 in words is "sixty-nine billion, six hundred sixty-eight million, six hundred thirty-one thousand, fifty-seven".