62731621157 has 2 divisors, whose sum is σ = 62731621158. Its totient is φ = 62731621156.

The previous prime is 62731621061. The next prime is 62731621159. The reversal of 62731621157 is 75112613726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50928754276 + 11802866881 = 225674^2 + 108641^2 .

It is a cyclic number.

It is not a de Polignac number, because 62731621157 - 2²⁴ = 62714843941 is a prime.

Together with 62731621159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62731621159) 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, 31365810578 + 31365810579.

It is an arithmetic number, because the mean of its divisors is an integer number (31365810579).

Almost surely, 2^62731621157 is an apocalyptic number.

It is an amenable number.

62731621157 is a deficient number, since it is larger than the sum of its proper divisors (1).

62731621157 is an equidigital number, since it uses as much as digits as its factorization.

62731621157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The spelling of 62731621157 in words is "sixty-two billion, seven hundred thirty-one million, six hundred twenty-one thousand, one hundred fifty-seven".