27401177157640 has 64 divisors (see below), whose sum is σ = 72431083690560. Its totient is φ = 9197597925120.

The previous prime is 27401177157611. The next prime is 27401177157647. The reversal of 27401177157640 is 4675177110472.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (27401177157647) 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, 2395202074 + ... + 2395213513.

It is an arithmetic number, because the mean of its divisors is an integer number (1131735682665).

Almost surely, 2^{27401177157640} is an apocalyptic number.

27401177157640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27401177157640 is an abundant number, since it is smaller than the sum of its proper divisors (45029906532920).

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

27401177157640 is a wasteful number, since it uses less digits than its factorization.

27401177157640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790415622 (or 4790415618 counting only the distinct ones).

The product of its (nonzero) digits is 2304960, while the sum is 52.

The spelling of 27401177157640 in words is "twenty-seven trillion, four hundred one billion, one hundred seventy-seven million, one hundred fifty-seven thousand, six hundred forty".