1398240627615 has 24 divisors (see below), whose sum is σ = 2610049172640. Its totient is φ = 688364616384.

The previous prime is 1398240627593. The next prime is 1398240627659. The reversal of 1398240627615 is 5167260428931.

It is a happy number.

1398240627615 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 2 + 4 + 0 + 627 + 6 + 1 + 5 = 666.

It is not a de Polignac number, because 1398240627615 - 2⁵ = 1398240627583 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1195076875 + ... + 1195078044.

It is an arithmetic number, because the mean of its divisors is an integer number (108752048860).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1398240627615 = 2796481255230, but 3⋅1398240627615 = 4194721882845 is not.

Almost surely, 2^{1398240627615} is an apocalyptic number.

1398240627615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1398240627615 is a deficient number, since it is larger than the sum of its proper divisors (1211808545025).

1398240627615 is a wasteful number, since it uses less digits than its factorization.

1398240627615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390154943 (or 2390154940 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 1398240627615 in words is "one trillion, three hundred ninety-eight billion, two hundred forty million, six hundred twenty-seven thousand, six hundred fifteen".