28345037318415 has 12 divisors (see below), whose sum is σ = 49131398018664. Its totient is φ = 15117353236464.

The previous prime is 28345037318371. The next prime is 28345037318453. The reversal of 28345037318415 is 51481373054382.

28345037318415 is a `hidden beast` number, since 2 + 8 + 3 + 450 + 3 + 7 + 3 + 184 + 1 + 5 = 666.

It is not a de Polignac number, because 28345037318415 - 2¹³ = 28345037310223 is a prime.

It is a super-2 number, since 2×28345037318415² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314944859049 + ... + 314944859138.

It is an arithmetic number, because the mean of its divisors is an integer number (4094283168222).

Almost surely, 2^{28345037318415} is an apocalyptic number.

28345037318415 is a deficient number, since it is larger than the sum of its proper divisors (20786360700249).

28345037318415 is a wasteful number, since it uses less digits than its factorization.

28345037318415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629889718198 (or 629889718195 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 28345037318415 in words is "twenty-eight trillion, three hundred forty-five billion, thirty-seven million, three hundred eighteen thousand, four hundred fifteen".