90134842734 has 24 divisors (see below), whose sum is σ = 196697144280. Its totient is φ = 29828796048.

The previous prime is 90134842727. The next prime is 90134842757. The reversal of 90134842734 is 43724843109.

90134842734 is a `hidden beast` number, since 90 + 13 + 484 + 2 + 73 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 90134842734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18010057 + ... + 18015060.

It is an arithmetic number, because the mean of its divisors is an integer number (8195714345).

Almost surely, 2^90134842734 is an apocalyptic number.

90134842734 is an abundant number, since it is smaller than the sum of its proper divisors (106562301546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90134842734 is a wasteful number, since it uses less digits than its factorization.

90134842734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36025264 (or 36025261 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 90134842734 in words is "ninety billion, one hundred thirty-four million, eight hundred forty-two thousand, seven hundred thirty-four".