90425672567 has 4 divisors (see below), whose sum is σ = 90426319776. Its totient is φ = 90425025360.

The previous prime is 90425672509. The next prime is 90425672581. The reversal of 90425672567 is 76527652409.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 90425672567 - 2¹⁰ = 90425671543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90425672767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17534 + ... + 425627.

It is an arithmetic number, because the mean of its divisors is an integer number (22606579944).

Almost surely, 2^90425672567 is an apocalyptic number.

90425672567 is a deficient number, since it is larger than the sum of its proper divisors (647209).

90425672567 is a wasteful number, since it uses less digits than its factorization.

90425672567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647208.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 90425672567 in words is "ninety billion, four hundred twenty-five million, six hundred seventy-two thousand, five hundred sixty-seven".