7798704048981 has 20 divisors (see below), whose sum is σ = 11847372134400. Its totient is φ = 5111015079816.

The previous prime is 7798704048911. The next prime is 7798704049007. The reversal of 7798704048981 is 1898404078977.

7798704048981 is a `hidden beast` number, since 7 + 79 + 8 + 70 + 4 + 0 + 489 + 8 + 1 = 666.

It is not a de Polignac number, because 7798704048981 - 2²⁶ = 7798636940117 is a prime.

It is a super-2 number, since 2×7798704048981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7798704048901) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 815929941 + ... + 815939498.

It is an arithmetic number, because the mean of its divisors is an integer number (592368606720).

Almost surely, 2^{7798704048981} is an apocalyptic number.

It is an amenable number.

7798704048981 is a deficient number, since it is larger than the sum of its proper divisors (4048668085419).

7798704048981 is a wasteful number, since it uses less digits than its factorization.

7798704048981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631869510 (or 1631869501 counting only the distinct ones).

The product of its (nonzero) digits is 227598336, while the sum is 72.

The spelling of 7798704048981 in words is "seven trillion, seven hundred ninety-eight billion, seven hundred four million, forty-eight thousand, nine hundred eighty-one".