15742580154 has 24 divisors (see below), whose sum is σ = 36625595328. Its totient is φ = 4497879960.

The previous prime is 15742580153. The next prime is 15742580173. The reversal of 15742580154 is 45108524751.

It is a happy number.

It is a super-2 number, since 2×15742580154² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (15742580153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26772802 + ... + 26773389.

It is an arithmetic number, because the mean of its divisors is an integer number (1526066472).

Almost surely, 2^15742580154 is an apocalyptic number.

15742580154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15742580154 is an abundant number, since it is smaller than the sum of its proper divisors (20883015174).

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

15742580154 is a wasteful number, since it uses less digits than its factorization.

15742580154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53546210 (or 53546203 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The spelling of 15742580154 in words is "fifteen billion, seven hundred forty-two million, five hundred eighty thousand, one hundred fifty-four".