15742035144 has 96 divisors (see below), whose sum is σ = 46895228640. Its totient is φ = 4770284640.

The previous prime is 15742035137. The next prime is 15742035167. The reversal of 15742035144 is 44153024751.

It is a super-2 number, since 2×15742035144² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15742035099 and 15742035108.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13699 + ... + 177965.

It is an arithmetic number, because the mean of its divisors is an integer number (488491965).

Almost surely, 2^15742035144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15742035144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23447614320).

15742035144 is an abundant number, since it is smaller than the sum of its proper divisors (31153193496).

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

15742035144 is a wasteful number, since it uses less digits than its factorization.

15742035144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164312 (or 164283 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 15742035144 its reverse (44153024751), we get a palindrome (59895059895).

The spelling of 15742035144 in words is "fifteen billion, seven hundred forty-two million, thirty-five thousand, one hundred forty-four".