15294740091 has 8 divisors (see below), whose sum is σ = 20638685760. Its totient is φ = 10073643912.

The previous prime is 15294740017. The next prime is 15294740107. The reversal of 15294740091 is 19004749251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15294740091 - 2³¹ = 13147256443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15294740291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30712081 + ... + 30712578.

It is an arithmetic number, because the mean of its divisors is an integer number (2579835720).

Almost surely, 2^15294740091 is an apocalyptic number.

15294740091 is a deficient number, since it is larger than the sum of its proper divisors (5343945669).

15294740091 is an equidigital number, since it uses as much as digits as its factorization.

15294740091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61424745.

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 15294740091 in words is "fifteen billion, two hundred ninety-four million, seven hundred forty thousand, ninety-one".