61472680057 has 2 divisors, whose sum is σ = 61472680058. Its totient is φ = 61472680056.

The previous prime is 61472680013. The next prime is 61472680099. The reversal of 61472680057 is 75008627416.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41804300521 + 19668379536 = 204461^2 + 140244^2 .

It is a cyclic number.

It is not a de Polignac number, because 61472680057 - 2⁷ = 61472679929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61472679989 and 61472680016.

It is not a weakly prime, because it can be changed into another prime (61472684057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30736340028 + 30736340029.

It is an arithmetic number, because the mean of its divisors is an integer number (30736340029).

Almost surely, 2^61472680057 is an apocalyptic number.

It is an amenable number.

61472680057 is a deficient number, since it is larger than the sum of its proper divisors (1).

61472680057 is an equidigital number, since it uses as much as digits as its factorization.

61472680057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 61472680057 in words is "sixty-one billion, four hundred seventy-two million, six hundred eighty thousand, fifty-seven".