15974474248 has 8 divisors (see below), whose sum is σ = 29952139230. Its totient is φ = 7987237120.

The previous prime is 15974474227. The next prime is 15974474273. The reversal of 15974474248 is 84247447951.

It can be written as a sum of positive squares in only one way, i.e., 15891627844 + 82846404 = 126062^2 + 9102^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998404633 + ... + 998404648.

Almost surely, 2^15974474248 is an apocalyptic number.

It is an amenable number.

15974474248 is a deficient number, since it is larger than the sum of its proper divisors (13977664982).

15974474248 is a wasteful number, since it uses less digits than its factorization.

15974474248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996809287 (or 1996809283 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 55.

The spelling of 15974474248 in words is "fifteen billion, nine hundred seventy-four million, four hundred seventy-four thousand, two hundred forty-eight".