14687478641 has 6 divisors (see below), whose sum is σ = 16144088226. Its totient is φ = 13352253200.

The previous prime is 14687478607. The next prime is 14687478647.

14687478641 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 7580314225 + 7107164416 = 87065^2 + 84304^2 .

It is not a de Polignac number, because 14687478641 - 2⁶ = 14687478577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14687478647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60691940 + ... + 60692181.

It is an arithmetic number, because the mean of its divisors is an integer number (2690681371).

Almost surely, 2^14687478641 is an apocalyptic number.

14687478641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14687478641 is a deficient number, since it is larger than the sum of its proper divisors (1456609585).

14687478641 is a wasteful number, since it uses less digits than its factorization.

14687478641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121384143 (or 121384132 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 56.

The spelling of 14687478641 in words is "fourteen billion, six hundred eighty-seven million, four hundred seventy-eight thousand, six hundred forty-one".