15954749198 has 8 divisors (see below), whose sum is σ = 25191709320. Its totient is φ = 7557512760.

The previous prime is 15954749191. The next prime is 15954749201. The reversal of 15954749198 is 89194745951.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 15954749198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15954749191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209930873 + ... + 209930948.

It is an arithmetic number, because the mean of its divisors is an integer number (3148963665).

Almost surely, 2^15954749198 is an apocalyptic number.

15954749198 is a deficient number, since it is larger than the sum of its proper divisors (9236960122).

15954749198 is a wasteful number, since it uses less digits than its factorization.

15954749198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419861842.

The product of its digits is 16329600, while the sum is 62.

The spelling of 15954749198 in words is "fifteen billion, nine hundred fifty-four million, seven hundred forty-nine thousand, one hundred ninety-eight".