28788807244454 has 32 divisors (see below), whose sum is σ = 46518127441920. Its totient is φ = 13323320524800.

The previous prime is 28788807244447. The next prime is 28788807244469. The reversal of 28788807244454 is 45444270888782.

It is a super-2 number, since 2×28788807244454² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16702709 + ... + 18345519.

It is an arithmetic number, because the mean of its divisors is an integer number (1453691482560).

Almost surely, 2^{28788807244454} is an apocalyptic number.

28788807244454 is a deficient number, since it is larger than the sum of its proper divisors (17729320197466).

28788807244454 is a wasteful number, since it uses less digits than its factorization.

28788807244454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655156.

The product of its (nonzero) digits is 1027604480, while the sum is 71.

The spelling of 28788807244454 in words is "twenty-eight trillion, seven hundred eighty-eight billion, eight hundred seven million, two hundred forty-four thousand, four hundred fifty-four".