7478915972 has 24 divisors (see below), whose sum is σ = 14408929920. Its totient is φ = 3368316960.

The previous prime is 7478915963. The next prime is 7478915981. The reversal of 7478915972 is 2795198747.

It is an interprime number because it is at equal distance from previous prime (7478915963) and next prime (7478915981).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774908 + ... + 784499.

It is an arithmetic number, because the mean of its divisors is an integer number (600372080).

Almost surely, 2^7478915972 is an apocalyptic number.

It is an amenable number.

7478915972 is a deficient number, since it is larger than the sum of its proper divisors (6930013948).

7478915972 is a wasteful number, since it uses less digits than its factorization.

7478915972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559531 (or 1559529 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 59.

The square root of 7478915972 is about 86480.7260145288. The cubic root of 7478915972 is about 1955.5978506582.

The spelling of 7478915972 in words is "seven billion, four hundred seventy-eight million, nine hundred fifteen thousand, nine hundred seventy-two".