61197502079 has 32 divisors (see below), whose sum is σ = 72468218880. Its totient is φ = 50599987200.

The previous prime is 61197502063. The next prime is 61197502117. The reversal of 61197502079 is 97020579116.

It is not a de Polignac number, because 61197502079 - 2⁴ = 61197502063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61197502019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5845952 + ... + 5856410.

It is an arithmetic number, because the mean of its divisors is an integer number (2264631840).

Almost surely, 2^61197502079 is an apocalyptic number.

61197502079 is a deficient number, since it is larger than the sum of its proper divisors (11270716801).

61197502079 is a wasteful number, since it uses less digits than its factorization.

61197502079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10791.

The product of its (nonzero) digits is 238140, while the sum is 47.

The spelling of 61197502079 in words is "sixty-one billion, one hundred ninety-seven million, five hundred two thousand, seventy-nine".