15341772493 has 12 divisors (see below), whose sum is σ = 15954221052. Its totient is φ = 14744009280.

The previous prime is 15341772449. The next prime is 15341772499. The reversal of 15341772493 is 39427714351.

It can be written as a sum of positive squares in 2 ways, for example, as 4543029604 + 10798742889 = 67402^2 + 103917^2 .

It is not a de Polignac number, because 15341772493 - 2⁹ = 15341771981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15341772499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142371 + ... + 225727.

It is an arithmetic number, because the mean of its divisors is an integer number (1329518421).

Almost surely, 2^15341772493 is an apocalyptic number.

It is an amenable number.

15341772493 is a deficient number, since it is larger than the sum of its proper divisors (612448559).

15341772493 is an frugal number, since it uses more digits than its factorization.

15341772493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83532 (or 83465 counting only the distinct ones).

The product of its digits is 635040, while the sum is 46.

The spelling of 15341772493 in words is "fifteen billion, three hundred forty-one million, seven hundred seventy-two thousand, four hundred ninety-three".