14977942394 has 4 divisors (see below), whose sum is σ = 22466913594. Its totient is φ = 7488971196.

The previous prime is 14977942349. The next prime is 14977942453. The reversal of 14977942394 is 49324977941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49324977941 = 1747 ⋅28234103.

It can be written as a sum of positive squares in only one way, i.e., 14408881369 + 569061025 = 120037^2 + 23855^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3744485597 + ... + 3744485600.

Almost surely, 2^14977942394 is an apocalyptic number.

14977942394 is a deficient number, since it is larger than the sum of its proper divisors (7488971200).

14977942394 is an equidigital number, since it uses as much as digits as its factorization.

14977942394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7488971199.

The product of its digits is 13716864, while the sum is 59.

The spelling of 14977942394 in words is "fourteen billion, nine hundred seventy-seven million, nine hundred forty-two thousand, three hundred ninety-four".