61097874672 has 40 divisors (see below), whose sum is σ = 157846482000. Its totient is φ = 20364628480.

The previous prime is 61097874671. The next prime is 61097874689. The reversal of 61097874672 is 27647879016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61097874671) 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, 940522 + ... + 1003382.

It is an arithmetic number, because the mean of its divisors is an integer number (3946162050).

Almost surely, 2^61097874672 is an apocalyptic number.

It is an amenable number.

61097874672 is an abundant number, since it is smaller than the sum of its proper divisors (96748607328).

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

61097874672 is a wasteful number, since it uses less digits than its factorization.

61097874672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83121 (or 83115 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 57.

The spelling of 61097874672 in words is "sixty-one billion, ninety-seven million, eight hundred seventy-four thousand, six hundred seventy-two".