15445454451 has 16 divisors (see below), whose sum is σ = 23654208000. Its totient is φ = 8781619968.

The previous prime is 15445454449. The next prime is 15445454461.

15445454451 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15445454451 - 2¹ = 15445454449 is a prime.

It is a super-2 number, since 2×15445454451² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15445454461) 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, 1843806 + ... + 1852163.

It is an arithmetic number, because the mean of its divisors is an integer number (1478388000).

Almost surely, 2^15445454451 is an apocalyptic number.

15445454451 is a deficient number, since it is larger than the sum of its proper divisors (8208753549).

15445454451 is a wasteful number, since it uses less digits than its factorization.

15445454451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696178.

The product of its digits is 640000, while the sum is 42.

The spelling of 15445454451 in words is "fifteen billion, four hundred forty-five million, four hundred fifty-four thousand, four hundred fifty-one".