61864738510982 has 32 divisors (see below), whose sum is σ = 101441348870400. Its totient is φ = 28062564818400.

The previous prime is 61864738510973. The next prime is 61864738511021. The reversal of 61864738510982 is 28901583746816.

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, 25834319 + ... + 28127237.

It is an arithmetic number, because the mean of its divisors is an integer number (3170042152200).

It is a 1-persistent number, because it is pandigital, but 2⋅61864738510982 = 123729477021964 is not.

Almost surely, 2^{61864738510982} is an apocalyptic number.

61864738510982 is a deficient number, since it is larger than the sum of its proper divisors (39576610359418).

61864738510982 is a wasteful number, since it uses less digits than its factorization.

61864738510982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295452.

The product of its (nonzero) digits is 139345920, while the sum is 68.

The spelling of 61864738510982 in words is "sixty-one trillion, eight hundred sixty-four billion, seven hundred thirty-eight million, five hundred ten thousand, nine hundred eighty-two".