90123025729 has 16 divisors (see below), whose sum is σ = 104121861120. Its totient is φ = 77198164560.

The previous prime is 90123025709. The next prime is 90123025777. The reversal of 90123025729 is 92752032109.

It is not a de Polignac number, because 90123025729 - 2⁵ = 90123025697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90123025691 and 90123025700.

It is not an unprimeable number, because it can be changed into a prime (90123025709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2641389 + ... + 2675290.

It is an arithmetic number, because the mean of its divisors is an integer number (6507616320).

Almost surely, 2^90123025729 is an apocalyptic number.

It is an amenable number.

90123025729 is a deficient number, since it is larger than the sum of its proper divisors (13998835391).

90123025729 is a wasteful number, since it uses less digits than its factorization.

90123025729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5316780.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 90123025729 in words is "ninety billion, one hundred twenty-three million, twenty-five thousand, seven hundred twenty-nine".