626674978993140 has 576 divisors, whose sum is σ = 2546834388553728. Its totient is φ = 120729053491200.

The previous prime is 626674978993117. The next prime is 626674978993169. The reversal of 626674978993140 is 41399879476626.

626674978993140 is a `hidden beast` number, since 6 + 2 + 6 + 6 + 7 + 497 + 8 + 99 + 31 + 4 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 626674978993140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4061856 + ... + 35634935.

It is an arithmetic number, because the mean of its divisors is an integer number (4421587480128).

Almost surely, 2^{626674978993140} is an apocalyptic number.

626674978993140 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 626674978993140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1273417194276864).

626674978993140 is an abundant number, since it is smaller than the sum of its proper divisors (1920159409560588).

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

626674978993140 is a wasteful number, since it uses less digits than its factorization.

626674978993140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39696908 (or 39696903 counting only the distinct ones).

The product of its (nonzero) digits is 5925685248, while the sum is 81.

The spelling of 626674978993140 in words is "six hundred twenty-six trillion, six hundred seventy-four billion, nine hundred seventy-eight million, nine hundred ninety-three thousand, one hundred forty".