73657143564452 has 48 divisors (see below), whose sum is σ = 148757900858112. Its totient is φ = 31258056574080.

The previous prime is 73657143564353. The next prime is 73657143564517. The reversal of 73657143564452 is 25446534175637.

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, 31080002 + ... + 33365862.

It is an arithmetic number, because the mean of its divisors is an integer number (3099122934544).

Almost surely, 2^{73657143564452} is an apocalyptic number.

It is an amenable number.

73657143564452 is an abundant number, since it is smaller than the sum of its proper divisors (75100757293660).

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

73657143564452 is a wasteful number, since it uses less digits than its factorization.

73657143564452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297148 (or 2297146 counting only the distinct ones).

The product of its digits is 254016000, while the sum is 62.

The spelling of 73657143564452 in words is "seventy-three trillion, six hundred fifty-seven billion, one hundred forty-three million, five hundred sixty-four thousand, four hundred fifty-two".