7770402996 has 12 divisors (see below), whose sum is σ = 18130940352. Its totient is φ = 2590134328.

The previous prime is 7770402989. The next prime is 7770403019. The reversal of 7770402996 is 6992040777.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323766780 + ... + 323766803.

It is an arithmetic number, because the mean of its divisors is an integer number (1510911696).

Almost surely, 2^7770402996 is an apocalyptic number.

It is an amenable number.

7770402996 is an abundant number, since it is smaller than the sum of its proper divisors (10360537356).

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

7770402996 is a wasteful number, since it uses less digits than its factorization.

7770402996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647533590 (or 647533588 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 51.

The square root of 7770402996 is about 88149.8893703220. The cubic root of 7770402996 is about 1980.6809034559.

The spelling of 7770402996 in words is "seven billion, seven hundred seventy million, four hundred two thousand, nine hundred ninety-six".