90768902734 has 8 divisors (see below), whose sum is σ = 136165779288. Its totient is φ = 45380309640.

The previous prime is 90768902729. The next prime is 90768902753. The reversal of 90768902734 is 43720986709.

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, 2043397 + ... + 2087344.

It is an arithmetic number, because the mean of its divisors is an integer number (17020722411).

Almost surely, 2^90768902734 is an apocalyptic number.

90768902734 is a deficient number, since it is larger than the sum of its proper divisors (45396876554).

90768902734 is a wasteful number, since it uses less digits than its factorization.

90768902734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141730.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 90768902734 in words is "ninety billion, seven hundred sixty-eight million, nine hundred two thousand, seven hundred thirty-four".