79488471961 has 2 divisors, whose sum is σ = 79488471962. Its totient is φ = 79488471960.

The previous prime is 79488471943. The next prime is 79488471989. The reversal of 79488471961 is 16917488497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79456334400 + 32137561 = 281880^2 + 5669^2 .

It is a cyclic number.

It is not a de Polignac number, because 79488471961 - 2⁵ = 79488471929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79488471893 and 79488471902.

It is not a weakly prime, because it can be changed into another prime (79488471941) 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 as a sum of consecutive naturals, namely, 39744235980 + 39744235981.

It is an arithmetic number, because the mean of its divisors is an integer number (39744235981).

Almost surely, 2^79488471961 is an apocalyptic number.

It is an amenable number.

79488471961 is a deficient number, since it is larger than the sum of its proper divisors (1).

79488471961 is an equidigital number, since it uses as much as digits as its factorization.

79488471961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24385536, while the sum is 64.

The spelling of 79488471961 in words is "seventy-nine billion, four hundred eighty-eight million, four hundred seventy-one thousand, nine hundred sixty-one".