61647240313104 has 80 divisors (see below), whose sum is σ = 169565363997120. Its totient is φ = 19232264212480.

The previous prime is 61647240313079. The next prime is 61647240313147. The reversal of 61647240313104 is 40131304274616.

It is a super-2 number, since 2×61647240313104² (a number of 28 digits) contains 22 as substring.

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, 210882117 + ... + 211174244.

It is an arithmetic number, because the mean of its divisors is an integer number (2119567049964).

Almost surely, 2^{61647240313104} is an apocalyptic number.

It is an amenable number.

61647240313104 is an abundant number, since it is smaller than the sum of its proper divisors (107918123684016).

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

61647240313104 is a wasteful number, since it uses less digits than its factorization.

61647240313104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422056568 (or 422056562 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 61647240313104 in words is "sixty-one trillion, six hundred forty-seven billion, two hundred forty million, three hundred thirteen thousand, one hundred four".