23470134640 has 40 divisors (see below), whose sum is σ = 54605888928. Its totient is φ = 9381546240.

The previous prime is 23470134629. The next prime is 23470134661. The reversal of 23470134640 is 4643107432.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23470134596 and 23470134605.

It is a congruent number.

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, 15285 + ... + 217195.

Almost surely, 2^23470134640 is an apocalyptic number.

23470134640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23470134640 is an abundant number, since it is smaller than the sum of its proper divisors (31135754288).

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

23470134640 is a wasteful number, since it uses less digits than its factorization.

23470134640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203377 (or 203371 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The spelling of 23470134640 in words is "twenty-three billion, four hundred seventy million, one hundred thirty-four thousand, six hundred forty".