15142705494 has 48 divisors (see below), whose sum is σ = 37302331248. Its totient is φ = 4071986688.

The previous prime is 15142705493. The next prime is 15142705531. The reversal of 15142705494 is 49450724151.

15142705494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142705493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1509879 + ... + 1519874.

It is an arithmetic number, because the mean of its divisors is an integer number (777131901).

Almost surely, 2^15142705494 is an apocalyptic number.

15142705494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15142705494 is an abundant number, since it is smaller than the sum of its proper divisors (22159625754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15142705494 is a wasteful number, since it uses less digits than its factorization.

15142705494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029789 (or 3029782 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 15142705494 in words is "fifteen billion, one hundred forty-two million, seven hundred five thousand, four hundred ninety-four".