23350391057 has 24 divisors (see below), whose sum is σ = 28026883584. Its totient is φ = 19386646272.

The previous prime is 23350391047. The next prime is 23350391081. The reversal of 23350391057 is 75019305332.

It is not a de Polignac number, because 23350391057 - 2¹⁸ = 23350128913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23350391057.

It is not an unprimeable number, because it can be changed into a prime (23350391047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171128 + ... + 275654.

It is an arithmetic number, because the mean of its divisors is an integer number (1167786816).

Almost surely, 2^23350391057 is an apocalyptic number.

It is an amenable number.

23350391057 is a deficient number, since it is larger than the sum of its proper divisors (4676492527).

23350391057 is a wasteful number, since it uses less digits than its factorization.

23350391057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104685 (or 104678 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 38.

Adding to 23350391057 its reverse (75019305332), we get a palindrome (98369696389).

The spelling of 23350391057 in words is "twenty-three billion, three hundred fifty million, three hundred ninety-one thousand, fifty-seven".