7842774522 has 32 divisors (see below), whose sum is σ = 17133364224. Its totient is φ = 2373562800.

The previous prime is 7842774487. The next prime is 7842774539. The reversal of 7842774522 is 2254772487.

It is a happy number.

It is a super-2 number, since 2×7842774522² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23554 + ... + 127437.

It is an arithmetic number, because the mean of its divisors is an integer number (535417632).

Almost surely, 2^7842774522 is an apocalyptic number.

7842774522 is an abundant number, since it is smaller than the sum of its proper divisors (9290589702).

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

7842774522 is a wasteful number, since it uses less digits than its factorization.

7842774522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151794.

The product of its digits is 1756160, while the sum is 48.

The square root of 7842774522 is about 88559.4406147645. The cubic root of 7842774522 is about 1986.8110943990.

The spelling of 7842774522 in words is "seven billion, eight hundred forty-two million, seven hundred seventy-four thousand, five hundred twenty-two".