5451236440432 has 80 divisors (see below), whose sum is σ = 11058754881888. Its totient is φ = 2600626728960.

The previous prime is 5451236440417. The next prime is 5451236440487. The reversal of 5451236440432 is 2340446321545.

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, 10631923 + ... + 11132845.

Almost surely, 2^{5451236440432} is an apocalyptic number.

It is an amenable number.

5451236440432 is an abundant number, since it is smaller than the sum of its proper divisors (5607518441456).

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

5451236440432 is a wasteful number, since it uses less digits than its factorization.

5451236440432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501338 (or 501332 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 43.

The spelling of 5451236440432 in words is "five trillion, four hundred fifty-one billion, two hundred thirty-six million, four hundred forty thousand, four hundred thirty-two".