15379529680 has 80 divisors (see below), whose sum is σ = 36876546000. Its totient is φ = 5961297920.

The previous prime is 15379529611. The next prime is 15379529699. The reversal of 15379529680 is 8692597351.

It can be written as a sum of positive squares in 8 ways, for example, as 4674730384 + 10704799296 = 68372^2 + 103464^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 472986 + ... + 504454.

It is an arithmetic number, because the mean of its divisors is an integer number (460956825).

Almost surely, 2^15379529680 is an apocalyptic number.

15379529680 is a gapful number since it is divisible by the number (10) 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 15379529680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18438273000).

15379529680 is an abundant number, since it is smaller than the sum of its proper divisors (21497016320).

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

15379529680 is a wasteful number, since it uses less digits than its factorization.

15379529680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31672 (or 31666 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 15379529680 in words is "fifteen billion, three hundred seventy-nine million, five hundred twenty-nine thousand, six hundred eighty".