4231520997552 has 90 divisors (see below), whose sum is σ = 12579969590708. Its totient is φ = 1327535986176.

The previous prime is 4231520997527. The next prime is 4231520997559. The reversal of 4231520997552 is 2557990251324.

4231520997552 is a `hidden beast` number, since 4 + 2 + 31 + 52 + 0 + 9 + 9 + 7 + 552 = 666.

It is not an unprimeable number, because it can be changed into a prime (4231520997559) 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, 50798458 + ... + 50881689.

Almost surely, 2^{4231520997552} is an apocalyptic number.

It is an amenable number.

4231520997552 is an abundant number, since it is smaller than the sum of its proper divisors (8348448593156).

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

4231520997552 is a wasteful number, since it uses less digits than its factorization.

4231520997552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101680195 (or 101680169 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 54.

The spelling of 4231520997552 in words is "four trillion, two hundred thirty-one billion, five hundred twenty million, nine hundred ninety-seven thousand, five hundred fifty-two".