28077752042 has 8 divisors (see below), whose sum is σ = 42745234656. Its totient is φ = 13829340492.

The previous prime is 28077752039. The next prime is 28077752051. The reversal of 28077752042 is 24025777082.

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

It is a junction number, because it is equal to n+sod(n) for n = 28077751984 and 28077752002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104767598 + ... + 104767865.

It is an arithmetic number, because the mean of its divisors is an integer number (5343154332).

Almost surely, 2^28077752042 is an apocalyptic number.

28077752042 is a deficient number, since it is larger than the sum of its proper divisors (14667482614).

28077752042 is a wasteful number, since it uses less digits than its factorization.

28077752042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209535532.

The product of its (nonzero) digits is 439040, while the sum is 44.

The spelling of 28077752042 in words is "twenty-eight billion, seventy-seven million, seven hundred fifty-two thousand, forty-two".