45040612731 has 4 divisors (see below), whose sum is σ = 60054150312. Its totient is φ = 30027075152.

The previous prime is 45040612711. The next prime is 45040612739. The reversal of 45040612731 is 13721604054.

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

It is a cyclic number.

It is not a de Polignac number, because 45040612731 - 2⁹ = 45040612219 is a prime.

It is a super-2 number, since 2×45040612731² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45040612692 and 45040612701.

It is not an unprimeable number, because it can be changed into a prime (45040612739) 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, 7506768786 + ... + 7506768791.

It is an arithmetic number, because the mean of its divisors is an integer number (15013537578).

Almost surely, 2^45040612731 is an apocalyptic number.

45040612731 is a deficient number, since it is larger than the sum of its proper divisors (15013537581).

45040612731 is a wasteful number, since it uses less digits than its factorization.

45040612731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15013537580.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 45040612731 in words is "forty-five billion, forty million, six hundred twelve thousand, seven hundred thirty-one".