27252778403 has 16 divisors (see below), whose sum is σ = 28037062656. Its totient is φ = 26477508000.

The previous prime is 27252778369. The next prime is 27252778411. The reversal of 27252778403 is 30487725272.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27252778403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (27252778303) 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, 6104150 + ... + 6108612.

It is an arithmetic number, because the mean of its divisors is an integer number (1752316416).

Almost surely, 2^27252778403 is an apocalyptic number.

27252778403 is a deficient number, since it is larger than the sum of its proper divisors (784284253).

27252778403 is a wasteful number, since it uses less digits than its factorization.

27252778403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 27252778403 in words is "twenty-seven billion, two hundred fifty-two million, seven hundred seventy-eight thousand, four hundred three".