61190976657 has 8 divisors (see below), whose sum is σ = 81596944576. Its totient is φ = 40789496592.

The previous prime is 61190976647. The next prime is 61190976659. The reversal of 61190976657 is 75667909116.

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

It is not a de Polignac number, because 61190976657 - 2⁶ = 61190976593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61190976597 and 61190976606.

It is not an unprimeable number, because it can be changed into a prime (61190976659) 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, 1090018 + ... + 1144779.

It is an arithmetic number, because the mean of its divisors is an integer number (10199618072).

Almost surely, 2^61190976657 is an apocalyptic number.

It is an amenable number.

61190976657 is a deficient number, since it is larger than the sum of its proper divisors (20405967919).

61190976657 is a wasteful number, since it uses less digits than its factorization.

61190976657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243927.

The product of its (nonzero) digits is 4286520, while the sum is 57.

The spelling of 61190976657 in words is "sixty-one billion, one hundred ninety million, nine hundred seventy-six thousand, six hundred fifty-seven".