745022513520 has 60 divisors (see below), whose sum is σ = 2502033943656. Its totient is φ = 198672670080.

The previous prime is 745022513519. The next prime is 745022513593. The reversal of 745022513520 is 25315220547.

745022513520 is a `hidden beast` number, since 7 + 4 + 50 + 2 + 251 + 352 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-3 number, since 3×745022513520³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 517376026 + ... + 517377465.

Almost surely, 2^745022513520 is an apocalyptic number.

It is an amenable number.

745022513520 is an abundant number, since it is smaller than the sum of its proper divisors (1757011430136).

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

745022513520 is a wasteful number, since it uses less digits than its factorization.

745022513520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034753510 (or 1034753501 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The spelling of 745022513520 in words is "seven hundred forty-five billion, twenty-two million, five hundred thirteen thousand, five hundred twenty".