7900863936 has 448 divisors, whose sum is σ = 26685849600. Its totient is φ = 2012000256.

The previous prime is 7900863923. The next prime is 7900863941. The reversal of 7900863936 is 6393680097.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34805455 + ... + 34805681.

Almost surely, 2^7900863936 is an apocalyptic number.

7900863936 is a gapful number since it is divisible by the number (76) 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 7900863936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13342924800).

7900863936 is an abundant number, since it is smaller than the sum of its proper divisors (18784985664).

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

7900863936 is a wasteful number, since it uses less digits than its factorization.

7900863936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 7900863936 is about 88886.8040599953. The cubic root of 7900863936 is about 1991.7042995856.

The spelling of 7900863936 in words is "seven billion, nine hundred million, eight hundred sixty-three thousand, nine hundred thirty-six".