23433552540 has 72 divisors (see below), whose sum is σ = 71309045808. Its totient is φ = 6228967680.

The previous prime is 23433552529. The next prime is 23433552559. The reversal of 23433552540 is 4525533432.

23433552540 is a `hidden beast` number, since 2 + 34 + 3 + 35 + 52 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23433552495 and 23433552504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151626 + ... + 264305.

It is an arithmetic number, because the mean of its divisors is an integer number (990403414).

Almost surely, 2^23433552540 is an apocalyptic number.

23433552540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23433552540 is an abundant number, since it is smaller than the sum of its proper divisors (47875493268).

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

23433552540 is a wasteful number, since it uses less digits than its factorization.

23433552540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416259 (or 416254 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

The spelling of 23433552540 in words is "twenty-three billion, four hundred thirty-three million, five hundred fifty-two thousand, five hundred forty".