6499379237418 has 32 divisors (see below), whose sum is σ = 14539998312000. Its totient is φ = 2151919744848.

The previous prime is 6499379237381. The next prime is 6499379237419. The reversal of 6499379237418 is 8147329739946.

It is a happy number.

6499379237418 is a `hidden beast` number, since 6 + 4 + 9 + 9 + 379 + 237 + 4 + 18 = 666.

It is a super-2 number, since 2×6499379237418² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6499379237419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403880796 + ... + 403896887.

It is an arithmetic number, because the mean of its divisors is an integer number (454374947250).

Almost surely, 2^{6499379237418} is an apocalyptic number.

6499379237418 is an abundant number, since it is smaller than the sum of its proper divisors (8040619074582).

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

6499379237418 is a wasteful number, since it uses less digits than its factorization.

6499379237418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807777843 (or 807777837 counting only the distinct ones).

The product of its digits is 493807104, while the sum is 72.

The spelling of 6499379237418 in words is "six trillion, four hundred ninety-nine billion, three hundred seventy-nine million, two hundred thirty-seven thousand, four hundred eighteen".