28775293051 has 8 divisors (see below), whose sum is σ = 29621588544. Its totient is φ = 27932607360.

The previous prime is 28775293037. The next prime is 28775293061. The reversal of 28775293051 is 15039257782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28775293051 - 2¹¹ = 28775291003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28775292986 and 28775293004.

It is not an unprimeable number, because it can be changed into a prime (28775293061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886270 + ... + 918163.

It is an arithmetic number, because the mean of its divisors is an integer number (3702698568).

Almost surely, 2^28775293051 is an apocalyptic number.

28775293051 is a deficient number, since it is larger than the sum of its proper divisors (846295493).

28775293051 is a wasteful number, since it uses less digits than its factorization.

28775293051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804901.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 28775293051 in words is "twenty-eight billion, seven hundred seventy-five million, two hundred ninety-three thousand, fifty-one".