10391715840 has 408 divisors, whose sum is σ = 37484208864. Its totient is φ = 2437939200.

The previous prime is 10391715823. The next prime is 10391715857. The reversal of 10391715840 is 4851719301.

It is an interprime number because it is at equal distance from previous prime (10391715823) and next prime (10391715857).

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, 335216625 + ... + 335216655.

Almost surely, 2^10391715840 is an apocalyptic number.

10391715840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10391715840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18742104432).

10391715840 is an abundant number, since it is smaller than the sum of its proper divisors (27092493024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10391715840 is an frugal number, since it uses more digits than its factorization.

10391715840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 10391715840 in words is "ten billion, three hundred ninety-one million, seven hundred fifteen thousand, eight hundred forty".