23226597978 has 16 divisors (see below), whose sum is σ = 48472900416. Its totient is φ = 7405581920.

The previous prime is 23226597923. The next prime is 23226597991. The reversal of 23226597978 is 87979562232.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84154203 + ... + 84154478.

It is an arithmetic number, because the mean of its divisors is an integer number (3029556276).

Almost surely, 2^23226597978 is an apocalyptic number.

23226597978 is an abundant number, since it is smaller than the sum of its proper divisors (25246302438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23226597978 is a wasteful number, since it uses less digits than its factorization.

23226597978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168308709.

The product of its digits is 22861440, while the sum is 60.

The spelling of 23226597978 in words is "twenty-three billion, two hundred twenty-six million, five hundred ninety-seven thousand, nine hundred seventy-eight".