23097193440 has 96 divisors (see below), whose sum is σ = 76585461120. Its totient is φ = 5835078144.

The previous prime is 23097193411. The next prime is 23097193451. The reversal of 23097193440 is 4439179032.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 23097193392 and 23097193401.

It is a congruent number.

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, 1257174 + ... + 1275413.

It is an arithmetic number, because the mean of its divisors is an integer number (797765220).

Almost surely, 2^23097193440 is an apocalyptic number.

23097193440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23097193440 is an abundant number, since it is smaller than the sum of its proper divisors (53488267680).

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

23097193440 is a wasteful number, since it uses less digits than its factorization.

23097193440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532624 (or 2532616 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 23097193440 in words is "twenty-three billion, ninety-seven million, one hundred ninety-three thousand, four hundred forty".