61211573867514 has 64 divisors (see below), whose sum is σ = 144776532499200. Its totient is φ = 16881307365888.

The previous prime is 61211573867497. The next prime is 61211573867533. The reversal of 61211573867514 is 41576837511216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2479099 + ... + 11338830.

It is an arithmetic number, because the mean of its divisors is an integer number (2262133320300).

Almost surely, 2^{61211573867514} is an apocalyptic number.

61211573867514 is an abundant number, since it is smaller than the sum of its proper divisors (83564958631686).

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

61211573867514 is a wasteful number, since it uses less digits than its factorization.

61211573867514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13821607.

The product of its digits is 8467200, while the sum is 57.

The spelling of 61211573867514 in words is "sixty-one trillion, two hundred eleven billion, five hundred seventy-three million, eight hundred sixty-seven thousand, five hundred fourteen".