45915279457 has 4 divisors (see below), whose sum is σ = 47396417536. Its totient is φ = 44434141380.

The previous prime is 45915279419. The next prime is 45915279479. The reversal of 45915279457 is 75497251954.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75497251954 = 2 ⋅37748625977.

It is a cyclic number.

It is not a de Polignac number, because 45915279457 - 2¹¹ = 45915277409 is a prime.

It is a super-2 number, since 2×45915279457² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45915279757) 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, 740568993 + ... + 740569054.

It is an arithmetic number, because the mean of its divisors is an integer number (11849104384).

Almost surely, 2^45915279457 is an apocalyptic number.

It is an amenable number.

45915279457 is a deficient number, since it is larger than the sum of its proper divisors (1481138079).

45915279457 is a wasteful number, since it uses less digits than its factorization.

45915279457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481138078.

The product of its digits is 15876000, while the sum is 58.

The spelling of 45915279457 in words is "forty-five billion, nine hundred fifteen million, two hundred seventy-nine thousand, four hundred fifty-seven".