611376863 has 4 divisors (see below), whose sum is σ = 627900600. Its totient is φ = 594853128.

The previous prime is 611376853. The next prime is 611376911. The reversal of 611376863 is 368673116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 611376863 - 2¹² = 611372767 is a prime.

It is a super-2 number, since 2×611376863² = 747563337223441538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 611376863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611376833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8261813 + ... + 8261886.

It is an arithmetic number, because the mean of its divisors is an integer number (156975150).

Almost surely, 2^611376863 is an apocalyptic number.

611376863 is a deficient number, since it is larger than the sum of its proper divisors (16523737).

611376863 is a wasteful number, since it uses less digits than its factorization.

611376863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16523736.

The product of its digits is 108864, while the sum is 41.

The square root of 611376863 is about 24726.0361360247. The cubic root of 611376863 is about 848.7302207992.

The spelling of 611376863 in words is "six hundred eleven million, three hundred seventy-six thousand, eight hundred sixty-three".