90278671252 has 48 divisors (see below), whose sum is σ = 196996705920. Its totient is φ = 35169033600.

The previous prime is 90278671243. The next prime is 90278671261. The reversal of 90278671252 is 25217687209.

It is an interprime number because it is at equal distance from previous prime (90278671243) and next prime (90278671261).

It is a junction number, because it is equal to n+sod(n) for n = 90278671196 and 90278671205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3455374 + ... + 3481402.

It is an arithmetic number, because the mean of its divisors is an integer number (4104098040).

Almost surely, 2^90278671252 is an apocalyptic number.

It is an amenable number.

90278671252 is an abundant number, since it is smaller than the sum of its proper divisors (106718034668).

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

90278671252 is a wasteful number, since it uses less digits than its factorization.

90278671252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37312 (or 37310 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 90278671252 in words is "ninety billion, two hundred seventy-eight million, six hundred seventy-one thousand, two hundred fifty-two".