23078657157945 has 16 divisors (see below), whose sum is σ = 37431685036032. Its totient is φ = 12140005956480.

The previous prime is 23078657157931. The next prime is 23078657157973. The reversal of 23078657157945 is 54975175687032.

It is a de Polignac number, because none of the positive numbers 2^k-23078657157945 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23078657157945.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10538198521 + ... + 10538200710.

It is an arithmetic number, because the mean of its divisors is an integer number (2339480314752).

It is a 1-persistent number, because it is pandigital, but 2⋅23078657157945 = 46157314315890 is not.

Almost surely, 2^{23078657157945} is an apocalyptic number.

It is an amenable number.

23078657157945 is a deficient number, since it is larger than the sum of its proper divisors (14353027878087).

23078657157945 is a wasteful number, since it uses less digits than its factorization.

23078657157945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21076399312.

The product of its (nonzero) digits is 444528000, while the sum is 69.

The spelling of 23078657157945 in words is "twenty-three trillion, seventy-eight billion, six hundred fifty-seven million, one hundred fifty-seven thousand, nine hundred forty-five".