747020693988 has 54 divisors (see below), whose sum is σ = 2005912862226. Its totient is φ = 234359430144.

The previous prime is 747020693987. The next prime is 747020694011. The reversal of 747020693988 is 889396020747.

747020693988 is a `hidden beast` number, since 7 + 470 + 20 + 69 + 3 + 9 + 88 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 466027406244 + 280993287744 = 682662^2 + 530088^2 .

It is not an unprimeable number, because it can be changed into a prime (747020693987) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35890245 + ... + 35911052.

Almost surely, 2^747020693988 is an apocalyptic number.

It is an amenable number.

747020693988 is an abundant number, since it is smaller than the sum of its proper divisors (1258892168238).

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

747020693988 is a wasteful number, since it uses less digits than its factorization.

747020693988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71801341 (or 71801319 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 747020693988 in words is "seven hundred forty-seven billion, twenty million, six hundred ninety-three thousand, nine hundred eighty-eight".