126987884784 has 60 divisors (see below), whose sum is σ = 368552298296. Its totient is φ = 42329293632.

The previous prime is 126987884759. The next prime is 126987884801. The reversal of 126987884784 is 487488789621.

126987884784 is a `hidden beast` number, since 12 + 69 + 8 + 7 + 88 + 478 + 4 = 666.

It is a super-2 number, since 2×126987884784² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16326859 + ... + 16334634.

Almost surely, 2^126987884784 is an apocalyptic number.

It is an amenable number.

126987884784 is an abundant number, since it is smaller than the sum of its proper divisors (241564413512).

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

126987884784 is an equidigital number, since it uses as much as digits as its factorization.

126987884784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32661516 (or 32661498 counting only the distinct ones).

The product of its digits is 346816512, while the sum is 72.

The spelling of 126987884784 in words is "one hundred twenty-six billion, nine hundred eighty-seven million, eight hundred eighty-four thousand, seven hundred eighty-four".