11636988437464 has 64 divisors (see below), whose sum is σ = 24738051996000. Its totient is φ = 5087505024000.

The previous prime is 11636988437423. The next prime is 11636988437471. The reversal of 11636988437464 is 46473488963611.

It is a junction number, because it is equal to n+sod(n) for n = 11636988437393 and 11636988437402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13413382 + ... + 14254570.

Almost surely, 2^{11636988437464} is an apocalyptic number.

It is an amenable number.

11636988437464 is an abundant number, since it is smaller than the sum of its proper divisors (13101063558536).

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

11636988437464 is a wasteful number, since it uses less digits than its factorization.

11636988437464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848228 (or 848224 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 70.

The spelling of 11636988437464 in words is "eleven trillion, six hundred thirty-six billion, nine hundred eighty-eight million, four hundred thirty-seven thousand, four hundred sixty-four".