90747377408 has 144 divisors (see below), whose sum is σ = 196494004224. Its totient is φ = 41664430080.

The previous prime is 90747377401. The next prime is 90747377411. The reversal of 90747377408 is 80477374709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90747377401) 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, 99612473 + ... + 99613383.

It is an arithmetic number, because the mean of its divisors is an integer number (1364541696).

Almost surely, 2^90747377408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90747377408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98247002112).

90747377408 is an abundant number, since it is smaller than the sum of its proper divisors (105746626816).

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

90747377408 is a wasteful number, since it uses less digits than its factorization.

90747377408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 8297856, while the sum is 56.

The spelling of 90747377408 in words is "ninety billion, seven hundred forty-seven million, three hundred seventy-seven thousand, four hundred eight".