15430520000 has 140 divisors (see below), whose sum is σ = 43729564560. Its totient is φ = 5290368000.

The previous prime is 15430519921. The next prime is 15430520087. The reversal of 15430520000 is 2503451.

15430520000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (140).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 252446 + ... + 307554.

Almost surely, 2^15430520000 is an apocalyptic number.

15430520000 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 15430520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21864782280).

15430520000 is an abundant number, since it is smaller than the sum of its proper divisors (28299044560).

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

15430520000 is an frugal number, since it uses more digits than its factorization.

15430520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55148 (or 55123 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The spelling of 15430520000 in words is "fifteen billion, four hundred thirty million, five hundred twenty thousand".