73858085831 has 2 divisors, whose sum is σ = 73858085832. Its totient is φ = 73858085830.

The previous prime is 73858085809. The next prime is 73858085839. The reversal of 73858085831 is 13858085837.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73858085831 is a prime.

It is a super-2 number, since 2×73858085831² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73858085839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36929042915 + 36929042916.

It is an arithmetic number, because the mean of its divisors is an integer number (36929042916).

Almost surely, 2^73858085831 is an apocalyptic number.

73858085831 is a deficient number, since it is larger than the sum of its proper divisors (1).

73858085831 is an equidigital number, since it uses as much as digits as its factorization.

73858085831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 73858085831 in words is "seventy-three billion, eight hundred fifty-eight million, eighty-five thousand, eight hundred thirty-one".