7798011868 has 12 divisors (see below), whose sum is σ = 13647986352. Its totient is φ = 3898587200.

The previous prime is 7798011853. The next prime is 7798011883. The reversal of 7798011868 is 8681108977.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7798011853) and next prime (7798011883).

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, 60733 + ... + 138868.

It is an arithmetic number, because the mean of its divisors is an integer number (1137332196).

Almost surely, 2^7798011868 is an apocalyptic number.

It is an amenable number.

7798011868 is a deficient number, since it is larger than the sum of its proper divisors (5849974484).

7798011868 is a wasteful number, since it uses less digits than its factorization.

7798011868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209372 (or 209370 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 55.

The square root of 7798011868 is about 88306.3523649347. The cubic root of 7798011868 is about 1983.0239705662.

The spelling of 7798011868 in words is "seven billion, seven hundred ninety-eight million, eleven thousand, eight hundred sixty-eight".