15779484154 has 32 divisors (see below), whose sum is σ = 28494046080. Its totient is φ = 6402255552.

The previous prime is 15779484137. The next prime is 15779484157. The reversal of 15779484154 is 45148497751.

It is a junction number, because it is equal to n+sod(n) for n = 15779484095 and 15779484104.

It is not an unprimeable number, because it can be changed into a prime (15779484157) 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, 377272 + ... + 417004.

It is an arithmetic number, because the mean of its divisors is an integer number (890438940).

Almost surely, 2^15779484154 is an apocalyptic number.

15779484154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15779484154 is a deficient number, since it is larger than the sum of its proper divisors (12714561926).

15779484154 is a wasteful number, since it uses less digits than its factorization.

15779484154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41254.

The product of its digits is 5644800, while the sum is 55.

The spelling of 15779484154 in words is "fifteen billion, seven hundred seventy-nine million, four hundred eighty-four thousand, one hundred fifty-four".