90261145750 has 16 divisors (see below), whose sum is σ = 168968865312. Its totient is φ = 36104458200.

The previous prime is 90261145721. The next prime is 90261145757. The reversal of 90261145750 is 5754116209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90261145757) 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 7 ways as a sum of consecutive naturals, for example, 180522042 + ... + 180522541.

It is an arithmetic number, because the mean of its divisors is an integer number (10560554082).

Almost surely, 2^90261145750 is an apocalyptic number.

90261145750 is a deficient number, since it is larger than the sum of its proper divisors (78707719562).

90261145750 is a wasteful number, since it uses less digits than its factorization.

90261145750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361044600 (or 361044590 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 90261145750 in words is "ninety billion, two hundred sixty-one million, one hundred forty-five thousand, seven hundred fifty".