15477794794 has 16 divisors (see below), whose sum is σ = 28945486656. Its totient is φ = 6030309600.

The previous prime is 15477794747. The next prime is 15477794797. The reversal of 15477794794 is 49749777451.

It is not an unprimeable number, because it can be changed into a prime (15477794797) 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 7 ways as a sum of consecutive naturals, for example, 50252427 + ... + 50252734.

It is an arithmetic number, because the mean of its divisors is an integer number (1809092916).

Almost surely, 2^15477794794 is an apocalyptic number.

15477794794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15477794794 is a deficient number, since it is larger than the sum of its proper divisors (13467691862).

15477794794 is a wasteful number, since it uses less digits than its factorization.

15477794794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100505181.

The product of its digits is 62233920, while the sum is 64.

It can be divided in two parts, 154777 and 94794, that added together give a triangular number (249571 = T₇₀₆).

The spelling of 15477794794 in words is "fifteen billion, four hundred seventy-seven million, seven hundred ninety-four thousand, seven hundred ninety-four".