59378537081 has 2 divisors, whose sum is σ = 59378537082. Its totient is φ = 59378537080.

The previous prime is 59378537051. The next prime is 59378537117. The reversal of 59378537081 is 18073587395.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54141843856 + 5236693225 = 232684^2 + 72365^2 .

It is a cyclic number.

It is not a de Polignac number, because 59378537081 - 2²² = 59374342777 is a prime.

It is a super-2 number, since 2×59378537081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (59378537051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29689268540 + 29689268541.

It is an arithmetic number, because the mean of its divisors is an integer number (29689268541).

Almost surely, 2^59378537081 is an apocalyptic number.

It is an amenable number.

59378537081 is a deficient number, since it is larger than the sum of its proper divisors (1).

59378537081 is an equidigital number, since it uses as much as digits as its factorization.

59378537081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 59378537081 in words is "fifty-nine billion, three hundred seventy-eight million, five hundred thirty-seven thousand, eighty-one".