7157980418 has 32 divisors (see below), whose sum is σ = 11050603200. Its totient is φ = 3476169216.

The previous prime is 7157980387. The next prime is 7157980421. The reversal of 7157980418 is 8140897517.

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, 3820730 + ... + 3822602.

It is an arithmetic number, because the mean of its divisors is an integer number (345331350).

Almost surely, 2^7157980418 is an apocalyptic number.

7157980418 is a deficient number, since it is larger than the sum of its proper divisors (3892622782).

7157980418 is a wasteful number, since it uses less digits than its factorization.

7157980418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 564480, while the sum is 50.

The square root of 7157980418 is about 84604.8486672011. The cubic root of 7157980418 is about 1927.2150063324.

The spelling of 7157980418 in words is "seven billion, one hundred fifty-seven million, nine hundred eighty thousand, four hundred eighteen".