90000129290771 has 8 divisors (see below), whose sum is σ = 102857352856320. Its totient is φ = 77142921284808.

The previous prime is 90000129290723. The next prime is 90000129290809. The reversal of 90000129290771 is 17709292100009.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90000129290771 is a prime.

It is a super-2 number, since 2×90000129290771² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90000129290471) 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, 13974200 + ... + 19372106.

It is an arithmetic number, because the mean of its divisors is an integer number (12857169107040).

Almost surely, 2^{90000129290771} is an apocalyptic number.

90000129290771 is a deficient number, since it is larger than the sum of its proper divisors (12857223565549).

90000129290771 is a wasteful number, since it uses less digits than its factorization.

90000129290771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779793.

The product of its (nonzero) digits is 142884, while the sum is 47.

The spelling of 90000129290771 in words is "ninety trillion, one hundred twenty-nine million, two hundred ninety thousand, seven hundred seventy-one".