90451458705 has 16 divisors (see below), whose sum is σ = 146214319104. Its totient is φ = 47743449600.

The previous prime is 90451458701. The next prime is 90451458709. The reversal of 90451458705 is 50785415409.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90451458701) and next prime (90451458709).

It is not a de Polignac number, because 90451458705 - 2² = 90451458701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90451458701) 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, 31081521 + ... + 31084430.

It is an arithmetic number, because the mean of its divisors is an integer number (9138394944).

Almost surely, 2^90451458705 is an apocalyptic number.

It is an amenable number.

90451458705 is a deficient number, since it is larger than the sum of its proper divisors (55762860399).

90451458705 is a wasteful number, since it uses less digits than its factorization.

90451458705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62166056.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 90451458705 in words is "ninety billion, four hundred fifty-one million, four hundred fifty-eight thousand, seven hundred five".