90946139983 has 2 divisors, whose sum is σ = 90946139984. Its totient is φ = 90946139982.

The previous prime is 90946139959. The next prime is 90946140007. The reversal of 90946139983 is 38993164909.

It is a balanced prime because it is at equal distance from previous prime (90946139959) and next prime (90946140007).

It is an emirp because it is prime and its reverse (38993164909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90946139983 - 2¹⁷ = 90946008911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90946139903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45473069991 + 45473069992.

It is an arithmetic number, because the mean of its divisors is an integer number (45473069992).

Almost surely, 2^90946139983 is an apocalyptic number.

90946139983 is a deficient number, since it is larger than the sum of its proper divisors (1).

90946139983 is an equidigital number, since it uses as much as digits as its factorization.

90946139983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11337408, while the sum is 61.

The spelling of 90946139983 in words is "ninety billion, nine hundred forty-six million, one hundred thirty-nine thousand, nine hundred eighty-three".