15898972340 has 24 divisors (see below), whose sum is σ = 33390524160. Its totient is φ = 6359078048.

The previous prime is 15898972303. The next prime is 15898972357. The reversal of 15898972340 is 4327989851.

15898972340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 315401 + ... + 362319.

It is an arithmetic number, because the mean of its divisors is an integer number (1391271840).

Almost surely, 2^15898972340 is an apocalyptic number.

15898972340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15898972340 is an abundant number, since it is smaller than the sum of its proper divisors (17491551820).

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

15898972340 is a wasteful number, since it uses less digits than its factorization.

15898972340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63871 (or 63869 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 15898972340 in words is "fifteen billion, eight hundred ninety-eight million, nine hundred seventy-two thousand, three hundred forty".