274029921690 has 128 divisors (see below), whose sum is σ = 756956897280. Its totient is φ = 62192621568.

The previous prime is 274029921689. The next prime is 274029921709. The reversal of 274029921690 is 96129920472.

It is a super-2 number, since 2×274029921690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17709337 + ... + 17724803.

It is an arithmetic number, because the mean of its divisors is an integer number (5913725760).

Almost surely, 2^274029921690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274029921690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378478448640).

274029921690 is an abundant number, since it is smaller than the sum of its proper divisors (482926975590).

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

274029921690 is a wasteful number, since it uses less digits than its factorization.

274029921690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16076.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 274029921690 in words is "two hundred seventy-four billion, twenty-nine million, nine hundred twenty-one thousand, six hundred ninety".