45311938723 has 4 divisors (see below), whose sum is σ = 45821061720. Its totient is φ = 44802815728.

The previous prime is 45311938709. The next prime is 45311938747. The reversal of 45311938723 is 32783911354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45311938723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45311938783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254561365 + ... + 254561542.

It is an arithmetic number, because the mean of its divisors is an integer number (11455265430).

Almost surely, 2^45311938723 is an apocalyptic number.

45311938723 is a deficient number, since it is larger than the sum of its proper divisors (509122997).

45311938723 is an equidigital number, since it uses as much as digits as its factorization.

45311938723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509122996.

The product of its digits is 544320, while the sum is 46.

The spelling of 45311938723 in words is "forty-five billion, three hundred eleven million, nine hundred thirty-eight thousand, seven hundred twenty-three".