61212125031544 has 64 divisors (see below), whose sum is σ = 115606726092000. Its totient is φ = 30384504729600.

The previous prime is 61212125031493. The next prime is 61212125031559. The reversal of 61212125031544 is 44513052121216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2030978827 + ... + 2031008965.

Almost surely, 2^{61212125031544} is an apocalyptic number.

It is an amenable number.

61212125031544 is a deficient number, since it is larger than the sum of its proper divisors (54394601060456).

61212125031544 is a wasteful number, since it uses less digits than its factorization.

61212125031544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33568 (or 33564 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 61212125031544 in words is "sixty-one trillion, two hundred twelve billion, one hundred twenty-five million, thirty-one thousand, five hundred forty-four".