90726602751 has 6 divisors (see below), whose sum is σ = 131049537320. Its totient is φ = 60484401828.

The previous prime is 90726602749. The next prime is 90726602789. The reversal of 90726602751 is 15720662709.

It is not a de Polignac number, because 90726602751 - 2¹ = 90726602749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90726602697 and 90726602706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90726602741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5040366811 + ... + 5040366828.

Almost surely, 2^90726602751 is an apocalyptic number.

90726602751 is a deficient number, since it is larger than the sum of its proper divisors (40322934569).

90726602751 is a wasteful number, since it uses less digits than its factorization.

90726602751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080733645 (or 10080733642 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 90726602751 in words is "ninety billion, seven hundred twenty-six million, six hundred two thousand, seven hundred fifty-one".