57621260707 has 2 divisors, whose sum is σ = 57621260708. Its totient is φ = 57621260706.

The previous prime is 57621260687. The next prime is 57621260729. The reversal of 57621260707 is 70706212675.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57621260707 is a prime.

It is not a weakly prime, because it can be changed into another prime (57621260797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28810630353 + 28810630354.

It is an arithmetic number, because the mean of its divisors is an integer number (28810630354).

Almost surely, 2^57621260707 is an apocalyptic number.

57621260707 is a deficient number, since it is larger than the sum of its proper divisors (1).

57621260707 is an equidigital number, since it uses as much as digits as its factorization.

57621260707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 57621260707 in words is "fifty-seven billion, six hundred twenty-one million, two hundred sixty thousand, seven hundred seven".