28190988734 has 8 divisors (see below), whose sum is σ = 42287424840. Its totient is φ = 14095180456.

The previous prime is 28190988719. The next prime is 28190988751. The reversal of 28190988734 is 43788909182.

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

It is a congruent number.

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, 21224 + ... + 238395.

It is an arithmetic number, because the mean of its divisors is an integer number (5285928105).

Almost surely, 2^28190988734 is an apocalyptic number.

28190988734 is a deficient number, since it is larger than the sum of its proper divisors (14096436106).

28190988734 is a wasteful number, since it uses less digits than its factorization.

28190988734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313914.

The product of its (nonzero) digits is 6967296, while the sum is 59.

The spelling of 28190988734 in words is "twenty-eight billion, one hundred ninety million, nine hundred eighty-eight thousand, seven hundred thirty-four".