15143778552 has 64 divisors (see below), whose sum is σ = 43277978880. Its totient is φ = 4325789952.

The previous prime is 15143778523. The next prime is 15143778593. The reversal of 15143778552 is 25587734151.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012843 + ... + 1027685.

It is an arithmetic number, because the mean of its divisors is an integer number (676218420).

Almost surely, 2^15143778552 is an apocalyptic number.

15143778552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15143778552 is an abundant number, since it is smaller than the sum of its proper divisors (28134200328).

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

15143778552 is a wasteful number, since it uses less digits than its factorization.

15143778552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20932 (or 20928 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 48.

The spelling of 15143778552 in words is "fifteen billion, one hundred forty-three million, seven hundred seventy-eight thousand, five hundred fifty-two".