745707271506 has 16 divisors (see below), whose sum is σ = 1579144810464. Its totient is φ = 233947379264.

The previous prime is 745707271493. The next prime is 745707271513. The reversal of 745707271506 is 605172707547.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3655427700 + ... + 3655427903.

It is an arithmetic number, because the mean of its divisors is an integer number (98696550654).

Almost surely, 2^745707271506 is an apocalyptic number.

745707271506 is an abundant number, since it is smaller than the sum of its proper divisors (833437538958).

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

745707271506 is a wasteful number, since it uses less digits than its factorization.

745707271506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310855625.

The product of its (nonzero) digits is 2881200, while the sum is 51.

The spelling of 745707271506 in words is "seven hundred forty-five billion, seven hundred seven million, two hundred seventy-one thousand, five hundred six".