73474257545 has 32 divisors (see below), whose sum is σ = 95794997760. Its totient is φ = 53776869120.

The previous prime is 73474257539. The next prime is 73474257587. The reversal of 73474257545 is 54575247437.

It is not a de Polignac number, because 73474257545 - 2⁴ = 73474257529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7462736 + ... + 7472574.

It is an arithmetic number, because the mean of its divisors is an integer number (2993593680).

Almost surely, 2^73474257545 is an apocalyptic number.

It is an amenable number.

73474257545 is a deficient number, since it is larger than the sum of its proper divisors (22320740215).

73474257545 is a wasteful number, since it uses less digits than its factorization.

73474257545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10865.

The product of its digits is 16464000, while the sum is 53.

The spelling of 73474257545 in words is "seventy-three billion, four hundred seventy-four million, two hundred fifty-seven thousand, five hundred forty-five".