7814530992 has 20 divisors (see below), whose sum is σ = 20187538520. Its totient is φ = 2604843648.

The previous prime is 7814530987. The next prime is 7814531009. The reversal of 7814530992 is 2990354187.

It is a super-2 number, since 2×7814530992² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 162802729 = 7814530992 / (7 + 8 + 1 + 4 + 5 + 3 + 0 + 9 + 9 + 2).

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, 81401317 + ... + 81401412.

It is an arithmetic number, because the mean of its divisors is an integer number (1009376926).

Almost surely, 2^7814530992 is an apocalyptic number.

It is an amenable number.

7814530992 is an abundant number, since it is smaller than the sum of its proper divisors (12373007528).

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

7814530992 is a wasteful number, since it uses less digits than its factorization.

7814530992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162802740 (or 162802734 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 7814530992 is about 88399.8359274495. The cubic root of 7814530992 is about 1984.4232466669.

The spelling of 7814530992 in words is "seven billion, eight hundred fourteen million, five hundred thirty thousand, nine hundred ninety-two".