7124979885 has 16 divisors (see below), whose sum is σ = 11404518720. Its totient is φ = 3798472320.

The previous prime is 7124979853. The next prime is 7124979907. The reversal of 7124979885 is 5889794217.

It is not a de Polignac number, because 7124979885 - 2⁵ = 7124979853 is a prime.

It is a super-2 number, since 2×7124979885² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55456 + ... + 131625.

It is an arithmetic number, because the mean of its divisors is an integer number (712782420).

Almost surely, 2^7124979885 is an apocalyptic number.

It is an amenable number.

7124979885 is a deficient number, since it is larger than the sum of its proper divisors (4279538835).

7124979885 is a wasteful number, since it uses less digits than its factorization.

7124979885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189628.

The product of its digits is 10160640, while the sum is 60.

The square root of 7124979885 is about 84409.5959296098. The cubic root of 7124979885 is about 1924.2487548156.

The spelling of 7124979885 in words is "seven billion, one hundred twenty-four million, nine hundred seventy-nine thousand, eight hundred eighty-five".