90782623551 has 16 divisors (see below), whose sum is σ = 121245640704. Its totient is φ = 60420765504.

The previous prime is 90782623543. The next prime is 90782623573. The reversal of 90782623551 is 15532628709.

It is not a de Polignac number, because 90782623551 - 2³ = 90782623543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90782623551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90782623541) 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 15 ways as a sum of consecutive naturals, for example, 4663300 + ... + 4682726.

It is an arithmetic number, because the mean of its divisors is an integer number (7577852544).

Almost surely, 2^90782623551 is an apocalyptic number.

90782623551 is a deficient number, since it is larger than the sum of its proper divisors (30463017153).

90782623551 is a wasteful number, since it uses less digits than its factorization.

90782623551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21950.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 90782623551 in words is "ninety billion, seven hundred eighty-two million, six hundred twenty-three thousand, five hundred fifty-one".