15473121852 has 48 divisors (see below), whose sum is σ = 36509840640. Its totient is φ = 5099875968.

The previous prime is 15473121809. The next prime is 15473121857. The reversal of 15473121852 is 25812137451.

It is a self number, because there is not a number n which added to its sum of digits gives 15473121852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15473121857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835024 + ... + 853352.

It is an arithmetic number, because the mean of its divisors is an integer number (760621680).

Almost surely, 2^15473121852 is an apocalyptic number.

15473121852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15473121852 is an abundant number, since it is smaller than the sum of its proper divisors (21036718788).

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

15473121852 is a wasteful number, since it uses less digits than its factorization.

15473121852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19122 (or 19120 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The spelling of 15473121852 in words is "fifteen billion, four hundred seventy-three million, one hundred twenty-one thousand, eight hundred fifty-two".