61651293702 has 16 divisors (see below), whose sum is σ = 123354228720. Its totient is φ = 20541824352.

The previous prime is 61651293661. The next prime is 61651293703. The reversal of 61651293702 is 20739215616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61651293703) 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, 2136193 + ... + 2164860.

It is an arithmetic number, because the mean of its divisors is an integer number (7709639295).

Almost surely, 2^61651293702 is an apocalyptic number.

61651293702 is an abundant number, since it is smaller than the sum of its proper divisors (61702935018).

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

61651293702 is a wasteful number, since it uses less digits than its factorization.

61651293702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303447.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 61651293702 in words is "sixty-one billion, six hundred fifty-one million, two hundred ninety-three thousand, seven hundred two".