6376240640 has 240 divisors, whose sum is σ = 19404967824. Its totient is φ = 1986969600.

The previous prime is 6376240627. The next prime is 6376240679. The reversal of 6376240640 is 460426736.

It is a junction number, because it is equal to n+sod(n) for n = 6376240594 and 6376240603.

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, 1377530 + ... + 1382150.

Almost surely, 2^6376240640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6376240640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9702483912).

6376240640 is an abundant number, since it is smaller than the sum of its proper divisors (13028727184).

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

6376240640 is a wasteful number, since it uses less digits than its factorization.

6376240640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669 (or 4646 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The square root of 6376240640 is about 79851.3659244474. The cubic root of 6376240640 is about 1854.3351598719.

The spelling of 6376240640 in words is "six billion, three hundred seventy-six million, two hundred forty thousand, six hundred forty".