45387076649 has 4 divisors (see below), whose sum is σ = 45665525136. Its totient is φ = 45108628164.

The previous prime is 45387076621. The next prime is 45387076687. The reversal of 45387076649 is 94667078354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45387076649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45387076619) 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, 139223999 + ... + 139224324.

It is an arithmetic number, because the mean of its divisors is an integer number (11416381284).

Almost surely, 2^45387076649 is an apocalyptic number.

It is an amenable number.

45387076649 is a deficient number, since it is larger than the sum of its proper divisors (278448487).

45387076649 is a wasteful number, since it uses less digits than its factorization.

45387076649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278448486.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 45387076649 in words is "forty-five billion, three hundred eighty-seven million, seventy-six thousand, six hundred forty-nine".