61672586013 has 48 divisors (see below), whose sum is σ = 95565525120. Its totient is φ = 38248785792.

The previous prime is 61672585999. The next prime is 61672586051. The reversal of 61672586013 is 31068527616.

61672586013 is a `hidden beast` number, since 6 + 1 + 67 + 2 + 586 + 0 + 1 + 3 = 666.

It is not a de Polignac number, because 61672586013 - 2⁸ = 61672585757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61672586013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61672486013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 963670 + ... + 1025672.

It is an arithmetic number, because the mean of its divisors is an integer number (1990948440).

Almost surely, 2^61672586013 is an apocalyptic number.

It is an amenable number.

61672586013 is a deficient number, since it is larger than the sum of its proper divisors (33892939107).

61672586013 is a wasteful number, since it uses less digits than its factorization.

61672586013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62178 (or 62175 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 61672586013 in words is "sixty-one billion, six hundred seventy-two million, five hundred eighty-six thousand, thirteen".