27401457402 has 24 divisors (see below), whose sum is σ = 64767081600. Its totient is φ = 8303471880.

The previous prime is 27401457367. The next prime is 27401457427. The reversal of 27401457402 is 20475410472.

27401457402 is a `hidden beast` number, since 2 + 74 + 0 + 14 + 574 + 0 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69195402 + ... + 69195797.

It is an arithmetic number, because the mean of its divisors is an integer number (2698628400).

Almost surely, 2^27401457402 is an apocalyptic number.

27401457402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27401457402 is an abundant number, since it is smaller than the sum of its proper divisors (37365624198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27401457402 is a wasteful number, since it uses less digits than its factorization.

27401457402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138391218 (or 138391215 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

Adding to 27401457402 its reverse (20475410472), we get a palindrome (47876867874).

The spelling of 27401457402 in words is "twenty-seven billion, four hundred one million, four hundred fifty-seven thousand, four hundred two".