2774689157 has 8 divisors (see below), whose sum is σ = 2938543296. Its totient is φ = 2614436352.

The previous prime is 2774689139. The next prime is 2774689199. The reversal of 2774689157 is 7519864772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2774689157 - 2¹² = 2774685061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774689657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898748 + ... + 901829.

It is an arithmetic number, because the mean of its divisors is an integer number (367317912).

Almost surely, 2^2774689157 is an apocalyptic number.

It is an amenable number.

2774689157 is a deficient number, since it is larger than the sum of its proper divisors (163854139).

2774689157 is a wasteful number, since it uses less digits than its factorization.

2774689157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800667.

The product of its digits is 5927040, while the sum is 56.

The square root of 2774689157 is about 52675.3182904479. The cubic root of 2774689157 is about 1405.1999068821.

The spelling of 2774689157 in words is "two billion, seven hundred seventy-four million, six hundred eighty-nine thousand, one hundred fifty-seven".