2273787813 has 8 divisors (see below), whose sum is σ = 3307327776. Its totient is φ = 1378053200.

The previous prime is 2273787809. The next prime is 2273787823. The reversal of 2273787813 is 3187873722.

It is a happy number.

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 2273787813 - 2² = 2273787809 is a prime.

It is a super-2 number, since 2×2273787813² = 10340222037094645938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273787823) 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, 34451298 + ... + 34451363.

It is an arithmetic number, because the mean of its divisors is an integer number (413415972).

Almost surely, 2^2273787813 is an apocalyptic number.

It is an amenable number.

2273787813 is a deficient number, since it is larger than the sum of its proper divisors (1033539963).

2273787813 is a wasteful number, since it uses less digits than its factorization.

2273787813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68902675.

The product of its digits is 790272, while the sum is 48.

The square root of 2273787813 is about 47684.2512051935. The cubic root of 2273787813 is about 1314.9724221351.

The spelling of 2273787813 in words is "two billion, two hundred seventy-three million, seven hundred eighty-seven thousand, eight hundred thirteen".