21486150453 has 16 divisors (see below), whose sum is σ = 29441926976. Its totient is φ = 13927749120.

The previous prime is 21486150421. The next prime is 21486150457. The reversal of 21486150453 is 35405168412.

It is not a de Polignac number, because 21486150453 - 2⁵ = 21486150421 is a prime.

It is a super-2 number, since 2×21486150453² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21486150457) 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, 106725 + ... + 233157.

It is an arithmetic number, because the mean of its divisors is an integer number (1840120436).

Almost surely, 2^21486150453 is an apocalyptic number.

It is an amenable number.

21486150453 is a deficient number, since it is larger than the sum of its proper divisors (7955776523).

21486150453 is a wasteful number, since it uses less digits than its factorization.

21486150453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128004.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 21486150453 in words is "twenty-one billion, four hundred eighty-six million, one hundred fifty thousand, four hundred fifty-three".