80421504651 has 12 divisors (see below), whose sum is σ = 116627205240. Its totient is φ = 53400732000.

The previous prime is 80421504613. The next prime is 80421504689. The reversal of 80421504651 is 15640512408.

It is a happy number.

80421504651 is a `hidden beast` number, since 8 + 0 + 42 + 150 + 465 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (80421504613) and next prime (80421504689).

It is not a de Polignac number, because 80421504651 - 2¹³ = 80421496459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80421504601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17797986 + ... + 17802503.

It is an arithmetic number, because the mean of its divisors is an integer number (9718933770).

Almost surely, 2^80421504651 is an apocalyptic number.

80421504651 is a deficient number, since it is larger than the sum of its proper divisors (36205700589).

80421504651 is a wasteful number, since it uses less digits than its factorization.

80421504651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35600746 (or 35600743 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 80421504651 in words is "eighty billion, four hundred twenty-one million, five hundred four thousand, six hundred fifty-one".