74857075837 has 2 divisors, whose sum is σ = 74857075838. Its totient is φ = 74857075836.

The previous prime is 74857075829. The next prime is 74857075859. The reversal of 74857075837 is 73857075847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63055729881 + 11801345956 = 251109^2 + 108634^2 .

It is a cyclic number.

It is not a de Polignac number, because 74857075837 - 2³ = 74857075829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74857075897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37428537918 + 37428537919.

It is an arithmetic number, because the mean of its divisors is an integer number (37428537919).

Almost surely, 2^74857075837 is an apocalyptic number.

It is an amenable number.

74857075837 is a deficient number, since it is larger than the sum of its proper divisors (1).

74857075837 is an equidigital number, since it uses as much as digits as its factorization.

74857075837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46099200, while the sum is 61.

The spelling of 74857075837 in words is "seventy-four billion, eight hundred fifty-seven million, seventy-five thousand, eight hundred thirty-seven".