73452465540 has 72 divisors (see below), whose sum is σ = 222828005400. Its totient is φ = 19585373184.

The previous prime is 73452465529. The next prime is 73452465577. The reversal of 73452465540 is 4556425437.

73452465540 is a `hidden beast` number, since 7 + 3 + 4 + 52 + 46 + 554 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14485085316 + 58967380224 = 120354^2 + 242832^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3246186 + ... + 3268734.

Almost surely, 2^73452465540 is an apocalyptic number.

It is an amenable number.

73452465540 is an abundant number, since it is smaller than the sum of its proper divisors (149375539860).

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

73452465540 is a wasteful number, since it uses less digits than its factorization.

73452465540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40661 (or 40656 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 45.

The spelling of 73452465540 in words is "seventy-three billion, four hundred fifty-two million, four hundred sixty-five thousand, five hundred forty".