745377633 has 160 divisors (see below), whose sum is σ = 1551432960. Its totient is φ = 344010240.

The previous prime is 745377623. The next prime is 745377649. The reversal of 745377633 is 336773547.

745377633 is a `hidden beast` number, since 7 + 4 + 5 + 3 + 7 + 7 + 633 = 666.

It is not a de Polignac number, because 745377633 - 2⁵ = 745377601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745377623) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2351191 + ... + 2351507.

It is an arithmetic number, because the mean of its divisors is an integer number (9696456).

Almost surely, 2^745377633 is an apocalyptic number.

It is an amenable number.

745377633 is an abundant number, since it is smaller than the sum of its proper divisors (806055327).

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

745377633 is a wasteful number, since it uses less digits than its factorization.

745377633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 380 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 45.

The square root of 745377633 is about 27301.6049528228. The cubic root of 745377633 is about 906.6899157071.

The spelling of 745377633 in words is "seven hundred forty-five million, three hundred seventy-seven thousand, six hundred thirty-three".