90412449947 has 2 divisors, whose sum is σ = 90412449948. Its totient is φ = 90412449946.

The previous prime is 90412449833. The next prime is 90412449977. The reversal of 90412449947 is 74994421409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90412449947 - 2¹⁶ = 90412384411 is a prime.

It is a super-2 number, since 2×90412449947² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90412449977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45206224973 + 45206224974.

It is an arithmetic number, because the mean of its divisors is an integer number (45206224974).

Almost surely, 2^90412449947 is an apocalyptic number.

90412449947 is a deficient number, since it is larger than the sum of its proper divisors (1).

90412449947 is an equidigital number, since it uses as much as digits as its factorization.

90412449947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 90412449947 in words is "ninety billion, four hundred twelve million, four hundred forty-nine thousand, nine hundred forty-seven".