12402633736 has 8 divisors (see below), whose sum is σ = 23254938270. Its totient is φ = 6201316864.

The previous prime is 12402633671. The next prime is 12402633799. The reversal of 12402633736 is 63733620421.

It can be written as a sum of positive squares in only one way, i.e., 12376562500 + 26071236 = 111250^2 + 5106^2 .

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 (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12402633695 and 12402633704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775164601 + ... + 775164616.

Almost surely, 2^12402633736 is an apocalyptic number.

It is an amenable number.

12402633736 is a deficient number, since it is larger than the sum of its proper divisors (10852304534).

12402633736 is a wasteful number, since it uses less digits than its factorization.

12402633736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550329223 (or 1550329219 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 12402633736 in words is "twelve billion, four hundred two million, six hundred thirty-three thousand, seven hundred thirty-six".