15493901442370 has 32 divisors (see below), whose sum is σ = 31069998655920. Its totient is φ = 5523555313920.

The previous prime is 15493901442293. The next prime is 15493901442379. The reversal of 15493901442370 is 7324410939451.

It can be written as a sum of positive squares in 8 ways, for example, as 3358829609521 + 12135071832849 = 1832711^2 + 3483543^2 .

It is not an unprimeable number, because it can be changed into a prime (15493901442379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054890321 + ... + 2054897860.

Almost surely, 2^{15493901442370} is an apocalyptic number.

15493901442370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15493901442370 is an abundant number, since it is smaller than the sum of its proper divisors (15576097213550).

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

15493901442370 is a wasteful number, since it uses less digits than its factorization.

15493901442370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109788230.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 15493901442370 in words is "fifteen trillion, four hundred ninety-three billion, nine hundred one million, four hundred forty-two thousand, three hundred seventy".