61864738510983 has 8 divisors (see below), whose sum is σ = 82486657255296. Its totient is φ = 41242989387000.

The previous prime is 61864738510973. The next prime is 61864738511021. The reversal of 61864738510983 is 38901583746816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61864738510983 - 2³² = 61860443543687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61864738510903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41551603 + ... + 43014708.

It is an arithmetic number, because the mean of its divisors is an integer number (10310832156912).

Almost surely, 2^{61864738510983} is an apocalyptic number.

61864738510983 is a deficient number, since it is larger than the sum of its proper divisors (20621918744313).

61864738510983 is a wasteful number, since it uses less digits than its factorization.

61864738510983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84810165.

The product of its (nonzero) digits is 209018880, while the sum is 69.

The spelling of 61864738510983 in words is "sixty-one trillion, eight hundred sixty-four billion, seven hundred thirty-eight million, five hundred ten thousand, nine hundred eighty-three".