90426502547 has 2 divisors, whose sum is σ = 90426502548. Its totient is φ = 90426502546.

The previous prime is 90426502531. The next prime is 90426502583. The reversal of 90426502547 is 74520562409.

It is a weak prime.

It is an emirp because it is prime and its reverse (74520562409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90426502547 - 2⁴ = 90426502531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90426502498 and 90426502507.

It is not a weakly prime, because it can be changed into another prime (90426502147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45213251273 + 45213251274.

It is an arithmetic number, because the mean of its divisors is an integer number (45213251274).

Almost surely, 2^90426502547 is an apocalyptic number.

90426502547 is a deficient number, since it is larger than the sum of its proper divisors (1).

90426502547 is an equidigital number, since it uses as much as digits as its factorization.

90426502547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 90426502547 in words is "ninety billion, four hundred twenty-six million, five hundred two thousand, five hundred forty-seven".