3452991387552 has 72 divisors (see below), whose sum is σ = 11222222016096. Its totient is φ = 986568967296.

The previous prime is 3452991387509. The next prime is 3452991387557. The reversal of 3452991387552 is 2557831992543.

3452991387552 is a `hidden beast` number, since 3 + 4 + 529 + 9 + 1 + 38 + 75 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 3452991387552.

It is not an unprimeable number, because it can be changed into a prime (3452991387557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 856394658 + ... + 856398689.

It is an arithmetic number, because the mean of its divisors is an integer number (155864194668).

Almost surely, 2^{3452991387552} is an apocalyptic number.

3452991387552 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3452991387552 is an abundant number, since it is smaller than the sum of its proper divisors (7769230628544).

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

3452991387552 is a wasteful number, since it uses less digits than its factorization.

3452991387552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712793370 (or 1712793359 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 3452991387552 in words is "three trillion, four hundred fifty-two billion, nine hundred ninety-one million, three hundred eighty-seven thousand, five hundred fifty-two".