15440151434 has 16 divisors (see below), whose sum is σ = 24585654600. Its totient is φ = 7247268864.

The previous prime is 15440151421. The next prime is 15440151473. The reversal of 15440151434 is 43415104451.

It can be written as a sum of positive squares in 4 ways, for example, as 15231262225 + 208889209 = 123415^2 + 14453^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15440151434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570479 + ... + 596930.

Almost surely, 2^15440151434 is an apocalyptic number.

15440151434 is a deficient number, since it is larger than the sum of its proper divisors (9145503166).

15440151434 is a wasteful number, since it uses less digits than its factorization.

15440151434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167817.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 15440151434 its reverse (43415104451), we get a palindrome (58855255885).

The spelling of 15440151434 in words is "fifteen billion, four hundred forty million, one hundred fifty-one thousand, four hundred thirty-four".