652021502538 has 16 divisors (see below), whose sum is σ = 1490334863040. Its totient is φ = 186291857856.

The previous prime is 652021502537. The next prime is 652021502677. The reversal of 652021502538 is 835205120256.

It is a super-2 number, since 2×652021502538² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 652021502496 and 652021502505.

It is not an unprimeable number, because it can be changed into a prime (652021502537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7762160703 + ... + 7762160786.

It is an arithmetic number, because the mean of its divisors is an integer number (93145928940).

Almost surely, 2^652021502538 is an apocalyptic number.

652021502538 is an abundant number, since it is smaller than the sum of its proper divisors (838313360502).

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

652021502538 is a wasteful number, since it uses less digits than its factorization.

652021502538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15524321501.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 652021502538 in words is "six hundred fifty-two billion, twenty-one million, five hundred two thousand, five hundred thirty-eight".