7422855987 has 16 divisors (see below), whose sum is σ = 10329458688. Its totient is φ = 4732495680.

The previous prime is 7422855971. The next prime is 7422855997. The reversal of 7422855987 is 7895582247.

It is not a de Polignac number, because 7422855987 - 2⁴ = 7422855971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7422855967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626238 + ... + 637980.

It is an arithmetic number, because the mean of its divisors is an integer number (645591168).

Almost surely, 2^7422855987 is an apocalyptic number.

7422855987 is a deficient number, since it is larger than the sum of its proper divisors (2906602701).

7422855987 is a wasteful number, since it uses less digits than its factorization.

7422855987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20930.

The product of its digits is 11289600, while the sum is 57.

The square root of 7422855987 is about 86155.9979746042. The cubic root of 7422855987 is about 1950.6993754347.

The spelling of 7422855987 in words is "seven billion, four hundred twenty-two million, eight hundred fifty-five thousand, nine hundred eighty-seven".