612540127625620 has 48 divisors (see below), whose sum is σ = 1317719903443776. Its totient is φ = 239037940256000.

The previous prime is 612540127625617. The next prime is 612540127625639. The reversal of 612540127625620 is 26526721045216.

It is a super-2 number, since 2×612540127625620² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91332915 + ... + 97809925.

It is an arithmetic number, because the mean of its divisors is an integer number (27452497988412).

Almost surely, 2^{612540127625620} is an apocalyptic number.

It is an amenable number.

612540127625620 is an abundant number, since it is smaller than the sum of its proper divisors (705179775818156).

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

612540127625620 is a wasteful number, since it uses less digits than its factorization.

612540127625620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6592392 (or 6592390 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 612540127625620 in words is "six hundred twelve trillion, five hundred forty billion, one hundred twenty-seven million, six hundred twenty-five thousand, six hundred twenty".