23270505621540 has 48 divisors (see below), whose sum is σ = 67990346863488. Its totient is φ = 5935665201664.

The previous prime is 23270505621533. The next prime is 23270505621593. The reversal of 23270505621540 is 4512650507232.

It is a junction number, because it is equal to n+sod(n) for n = 23270505621492 and 23270505621501.

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 15 ways as a sum of consecutive naturals, for example, 8431341237 + ... + 8431343996.

It is an arithmetic number, because the mean of its divisors is an integer number (1416465559656).

Almost surely, 2^{23270505621540} is an apocalyptic number.

23270505621540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23270505621540 is an abundant number, since it is smaller than the sum of its proper divisors (44719841241948).

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

23270505621540 is a wasteful number, since it uses less digits than its factorization.

23270505621540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16862685268 (or 16862685266 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 23270505621540 in words is "twenty-three trillion, two hundred seventy billion, five hundred five million, six hundred twenty-one thousand, five hundred forty".