15314997390 has 128 divisors (see below), whose sum is σ = 46891671552. Its totient is φ = 3108309120.

The previous prime is 15314997389. The next prime is 15314997421. The reversal of 15314997390 is 9379941351.

15314997390 is digitally balanced in base 5, 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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22239 + ... + 176421.

It is an arithmetic number, because the mean of its divisors is an integer number (366341184).

Almost surely, 2^15314997390 is an apocalyptic number.

15314997390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15314997390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23445835776).

15314997390 is an abundant number, since it is smaller than the sum of its proper divisors (31576674162).

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

15314997390 is a wasteful number, since it uses less digits than its factorization.

15314997390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154254.

The product of its (nonzero) digits is 918540, while the sum is 51.

The spelling of 15314997390 in words is "fifteen billion, three hundred fourteen million, nine hundred ninety-seven thousand, three hundred ninety".