90428597254 has 8 divisors (see below), whose sum is σ = 139308920208. Its totient is φ = 43992290520.

The previous prime is 90428597209. The next prime is 90428597269. The reversal of 90428597254 is 45279582409.

It is a happy number.

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

It is a super-2 number, since 2×90428597254² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90428597195 and 90428597204.

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, 611003962 + ... + 611004109.

It is an arithmetic number, because the mean of its divisors is an integer number (17413615026).

Almost surely, 2^90428597254 is an apocalyptic number.

90428597254 is a deficient number, since it is larger than the sum of its proper divisors (48880322954).

90428597254 is a wasteful number, since it uses less digits than its factorization.

90428597254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222008110.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 90428597254 in words is "ninety billion, four hundred twenty-eight million, five hundred ninety-seven thousand, two hundred fifty-four".