7158615972 has 48 divisors (see below), whose sum is σ = 16836906240. Its totient is φ = 2367203488.

The previous prime is 7158615929. The next prime is 7158615973. The reversal of 7158615972 is 2795168517.

It is not an unprimeable number, because it can be changed into a prime (7158615973) 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, 947803 + ... + 955325.

It is an arithmetic number, because the mean of its divisors is an integer number (350768880).

Almost surely, 2^7158615972 is an apocalyptic number.

It is an amenable number.

7158615972 is an abundant number, since it is smaller than the sum of its proper divisors (9678290268).

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

7158615972 is a wasteful number, since it uses less digits than its factorization.

7158615972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8152 (or 8150 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 51.

The square root of 7158615972 is about 84608.6045978776. The cubic root of 7158615972 is about 1927.2720435079.

The spelling of 7158615972 in words is "seven billion, one hundred fifty-eight million, six hundred fifteen thousand, nine hundred seventy-two".