7478731964 has 24 divisors (see below), whose sum is σ = 14280679728. Its totient is φ = 3398685440.

The previous prime is 7478731889. The next prime is 7478731991. The reversal of 7478731964 is 4691378747.

It is a congruent number.

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, 221534 + ... + 253050.

It is an arithmetic number, because the mean of its divisors is an integer number (595028322).

Almost surely, 2^7478731964 is an apocalyptic number.

It is an amenable number.

7478731964 is a deficient number, since it is larger than the sum of its proper divisors (6801947764).

7478731964 is a wasteful number, since it uses less digits than its factorization.

7478731964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36925 (or 36923 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 56.

The square root of 7478731964 is about 86479.6621408756. The cubic root of 7478731964 is about 1955.5818123000.

The spelling of 7478731964 in words is "seven billion, four hundred seventy-eight million, seven hundred thirty-one thousand, nine hundred sixty-four".