23078689920 has 384 divisors, whose sum is σ = 93629390400. Its totient is φ = 5164277760.

The previous prime is 23078689871. The next prime is 23078689951. The reversal of 23078689920 is 2998687032.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 809671 + ... + 837689.

Almost surely, 2^23078689920 is an apocalyptic number.

23078689920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23078689920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46814695200).

23078689920 is an abundant number, since it is smaller than the sum of its proper divisors (70550700480).

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

23078689920 is a wasteful number, since it uses less digits than its factorization.

23078689920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28068 (or 28053 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 23078689920 in words is "twenty-three billion, seventy-eight million, six hundred eighty-nine thousand, nine hundred twenty".