61037613012 has 24 divisors (see below), whose sum is σ = 149916944800. Its totient is φ = 19275035616.

The previous prime is 61037613011. The next prime is 61037613017. The reversal of 61037613012 is 21031673016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61037613011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133854187 + ... + 133854642.

Almost surely, 2^61037613012 is an apocalyptic number.

It is an amenable number.

61037613012 is an abundant number, since it is smaller than the sum of its proper divisors (88879331788).

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

61037613012 is a wasteful number, since it uses less digits than its factorization.

61037613012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267708855 (or 267708853 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The spelling of 61037613012 in words is "sixty-one billion, thirty-seven million, six hundred thirteen thousand, twelve".