3898437006931 has 2 divisors, whose sum is σ = 3898437006932. Its totient is φ = 3898437006930.

The previous prime is 3898437006899. The next prime is 3898437006941. The reversal of 3898437006931 is 1396007348983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3898437006931 - 2⁵ = 3898437006899 is a prime.

It is a super-2 number, since 2×3898437006931² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3898437006931.

It is not a weakly prime, because it can be changed into another prime (3898437006941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1949218503465 + 1949218503466.

It is an arithmetic number, because the mean of its divisors is an integer number (1949218503466).

Almost surely, 2^{3898437006931} is an apocalyptic number.

3898437006931 is a deficient number, since it is larger than the sum of its proper divisors (1).

3898437006931 is an equidigital number, since it uses as much as digits as its factorization.

3898437006931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 3898437006931 in words is "three trillion, eight hundred ninety-eight billion, four hundred thirty-seven million, six thousand, nine hundred thirty-one".