90526437761 has 4 divisors (see below), whose sum is σ = 90568920624. Its totient is φ = 90483954900.

The previous prime is 90526437733. The next prime is 90526437791. The reversal of 90526437761 is 16773462509.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90526437761 - 2⁶ = 90526437697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90526437791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21238235 + ... + 21242496.

It is an arithmetic number, because the mean of its divisors is an integer number (22642230156).

Almost surely, 2^90526437761 is an apocalyptic number.

It is an amenable number.

90526437761 is a deficient number, since it is larger than the sum of its proper divisors (42482863).

90526437761 is a wasteful number, since it uses less digits than its factorization.

90526437761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42482862.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 90526437761 in words is "ninety billion, five hundred twenty-six million, four hundred thirty-seven thousand, seven hundred sixty-one".