90451451361 has 16 divisors (see below), whose sum is σ = 121855553600. Its totient is φ = 59675496768.

The previous prime is 90451451359. The next prime is 90451451413. The reversal of 90451451361 is 16315415409.

It is not a de Polignac number, because 90451451361 - 2¹ = 90451451359 is a prime.

It is a super-2 number, since 2×90451451361² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90451450361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104250 + ... + 437916.

It is an arithmetic number, because the mean of its divisors is an integer number (7615972100).

Almost surely, 2^90451451361 is an apocalyptic number.

It is an amenable number.

90451451361 is a deficient number, since it is larger than the sum of its proper divisors (31404102239).

90451451361 is a wasteful number, since it uses less digits than its factorization.

90451451361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334608.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 90451451361 in words is "ninety billion, four hundred fifty-one million, four hundred fifty-one thousand, three hundred sixty-one".