90227739347928 has 1152 divisors, whose sum is σ = 320990022400320. Its totient is φ = 22669978705920.

The previous prime is 90227739347903. The next prime is 90227739347959. The reversal of 90227739347928 is 82974393772209.

90227739347928 is a `hidden beast` number, since 9 + 0 + 2 + 277 + 3 + 9 + 347 + 9 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 72940774926 + ... + 72940776162.

Almost surely, 2^{90227739347928} is an apocalyptic number.

90227739347928 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90227739347928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160495011200160).

90227739347928 is an abundant number, since it is smaller than the sum of its proper divisors (230762283052392).

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

90227739347928 is a wasteful number, since it uses less digits than its factorization.

90227739347928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 576108288, while the sum is 72.

The spelling of 90227739347928 in words is "ninety trillion, two hundred twenty-seven billion, seven hundred thirty-nine million, three hundred forty-seven thousand, nine hundred twenty-eight".