15242191194 has 24 divisors (see below), whose sum is σ = 32383067328. Its totient is φ = 4781863360.

The previous prime is 15242191193. The next prime is 15242191199. The reversal of 15242191194 is 49119124251.

It is a super-2 number, since 2×15242191194² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15242191193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4393362 + ... + 4396829.

It is an arithmetic number, because the mean of its divisors is an integer number (1349294472).

Almost surely, 2^15242191194 is an apocalyptic number.

15242191194 is an abundant number, since it is smaller than the sum of its proper divisors (17140876134).

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

15242191194 is a wasteful number, since it uses less digits than its factorization.

15242191194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790230 (or 8790213 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The spelling of 15242191194 in words is "fifteen billion, two hundred forty-two million, one hundred ninety-one thousand, one hundred ninety-four".