28975014737 has 4 divisors (see below), whose sum is σ = 29001285120. Its totient is φ = 28948744356.

The previous prime is 28975014661. The next prime is 28975014743. The reversal of 28975014737 is 73741057982.

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: 73741057982 = 2 ⋅36870528991.

It is a cyclic number.

It is not a de Polignac number, because 28975014737 - 2¹² = 28975010641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28975014767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13133537 + ... + 13135742.

It is an arithmetic number, because the mean of its divisors is an integer number (7250321280).

Almost surely, 2^28975014737 is an apocalyptic number.

It is an amenable number.

28975014737 is a deficient number, since it is larger than the sum of its proper divisors (26270383).

28975014737 is a wasteful number, since it uses less digits than its factorization.

28975014737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26270382.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 28975014737 in words is "twenty-eight billion, nine hundred seventy-five million, fourteen thousand, seven hundred thirty-seven".