90248712378 has 16 divisors (see below), whose sum is σ = 196906281696. Its totient is φ = 27348094640.

The previous prime is 90248712371. The next prime is 90248712383. The reversal of 90248712378 is 87321784209.

It is a self number, because there is not a number n which added to its sum of digits gives 90248712378.

It is not an unprimeable number, because it can be changed into a prime (90248712371) 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, 683702301 + ... + 683702432.

It is an arithmetic number, because the mean of its divisors is an integer number (12306642606).

Almost surely, 2^90248712378 is an apocalyptic number.

90248712378 is an abundant number, since it is smaller than the sum of its proper divisors (106657569318).

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

90248712378 is a wasteful number, since it uses less digits than its factorization.

90248712378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367404749.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 90248712378 in words is "ninety billion, two hundred forty-eight million, seven hundred twelve thousand, three hundred seventy-eight".