57015379973 has 2 divisors, whose sum is σ = 57015379974. Its totient is φ = 57015379972.

The previous prime is 57015379969. The next prime is 57015379979. The reversal of 57015379973 is 37997351075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50453245924 + 6562134049 = 224618^2 + 81007^2 .

It is a cyclic number.

It is not a de Polignac number, because 57015379973 - 2² = 57015379969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57015379979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28507689986 + 28507689987.

It is an arithmetic number, because the mean of its divisors is an integer number (28507689987).

Almost surely, 2^57015379973 is an apocalyptic number.

It is an amenable number.

57015379973 is a deficient number, since it is larger than the sum of its proper divisors (1).

57015379973 is an equidigital number, since it uses as much as digits as its factorization.

57015379973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6251175, while the sum is 56.

The spelling of 57015379973 in words is "fifty-seven billion, fifteen million, three hundred seventy-nine thousand, nine hundred seventy-three".