15493941390 has 32 divisors (see below), whose sum is σ = 37189031040. Its totient is φ = 4131320864.

The previous prime is 15493941347. The next prime is 15493941403. The reversal of 15493941390 is 9314939451.

It is a happy number.

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, 428641 + ... + 463379.

It is an arithmetic number, because the mean of its divisors is an integer number (1162157220).

Almost surely, 2^15493941390 is an apocalyptic number.

15493941390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15493941390 is an abundant number, since it is smaller than the sum of its proper divisors (21695089650).

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

15493941390 is a wasteful number, since it uses less digits than its factorization.

15493941390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49616.

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 15493941390 in words is "fifteen billion, four hundred ninety-three million, nine hundred forty-one thousand, three hundred ninety".