3898437006915 has 96 divisors (see below), whose sum is σ = 7467797376000. Its totient is φ = 1865501314560.

The previous prime is 3898437006899. The next prime is 3898437006931. The reversal of 3898437006915 is 5196007348983.

It is a Cunningham number, because it is equal to 1974446²-1.

It is an interprime number because it is at equal distance from previous prime (3898437006899) and next prime (3898437006931).

It is not a de Polignac number, because 3898437006915 - 2⁴ = 3898437006899 is a prime.

It is a super-3 number, since 3×3898437006915³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 108576636 + ... + 108612534.

It is an arithmetic number, because the mean of its divisors is an integer number (77789556000).

Almost surely, 2^{3898437006915} is an apocalyptic number.

3898437006915 is a deficient number, since it is larger than the sum of its proper divisors (3569360369085).

3898437006915 is a wasteful number, since it uses less digits than its factorization.

3898437006915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38777 (or 38774 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 3898437006915 in words is "three trillion, eight hundred ninety-eight billion, four hundred thirty-seven million, six thousand, nine hundred fifteen".