6913995157440 has 896 divisors, whose sum is σ = 28079131852800. Its totient is φ = 1568844288000.

The previous prime is 6913995157429. The next prime is 6913995157441. The reversal of 6913995157440 is 447515993196.

6913995157440 is a `hidden beast` number, since 6 + 9 + 1 + 3 + 9 + 9 + 51 + 574 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6913995157441) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6360620577 + ... + 6360621663.

It is an arithmetic number, because the mean of its divisors is an integer number (31338316800).

Almost surely, 2^{6913995157440} is an apocalyptic number.

6913995157440 is a gapful number since it is divisible by the number (60) 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 6913995157440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14039565926400).

6913995157440 is an abundant number, since it is smaller than the sum of its proper divisors (21165136695360).

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

6913995157440 is a wasteful number, since it uses less digits than its factorization.

6913995157440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790 (or 1774 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 63.

The spelling of 6913995157440 in words is "six trillion, nine hundred thirteen billion, nine hundred ninety-five million, one hundred fifty-seven thousand, four hundred forty".