27134797690 has 128 divisors (see below), whose sum is σ = 69436942848. Its totient is φ = 7347732480.

The previous prime is 27134797649. The next prime is 27134797709. The reversal of 27134797690 is 9679743172.

It is a super-2 number, since 2×27134797690² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90442 + ... + 249898.

It is an arithmetic number, because the mean of its divisors is an integer number (542476116).

Almost surely, 2^27134797690 is an apocalyptic number.

27134797690 is an abundant number, since it is smaller than the sum of its proper divisors (42302145158).

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

27134797690 is a wasteful number, since it uses less digits than its factorization.

27134797690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159512.

The product of its (nonzero) digits is 4000752, while the sum is 55.

The spelling of 27134797690 in words is "twenty-seven billion, one hundred thirty-four million, seven hundred ninety-seven thousand, six hundred ninety".