15229774364 has 48 divisors (see below), whose sum is σ = 31605374976. Its totient is φ = 6283699200.

The previous prime is 15229774327. The next prime is 15229774379. The reversal of 15229774364 is 46347792251.

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, 122069 + ... + 212979.

It is an arithmetic number, because the mean of its divisors is an integer number (658445312).

Almost surely, 2^15229774364 is an apocalyptic number.

15229774364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15229774364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15802687488).

15229774364 is an abundant number, since it is smaller than the sum of its proper divisors (16375600612).

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

15229774364 is a wasteful number, since it uses less digits than its factorization.

15229774364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91146 (or 91144 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 50.

The spelling of 15229774364 in words is "fifteen billion, two hundred twenty-nine million, seven hundred seventy-four thousand, three hundred sixty-four".