361868791 has 4 divisors (see below), whose sum is σ = 363763584. Its totient is φ = 359974000.

The previous prime is 361868761. The next prime is 361868803. The reversal of 361868791 is 197868163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 197868163 = 6997 ⋅28279.

It is a cyclic number.

It is not a de Polignac number, because 361868791 - 2¹³ = 361860599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361868761) 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, 947110 + ... + 947491.

It is an arithmetic number, because the mean of its divisors is an integer number (90940896).

Almost surely, 2^361868791 is an apocalyptic number.

361868791 is a deficient number, since it is larger than the sum of its proper divisors (1894793).

361868791 is a wasteful number, since it uses less digits than its factorization.

361868791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894792.

The product of its digits is 435456, while the sum is 49.

The square root of 361868791 is about 19022.8491819706. The cubic root of 361868791 is about 712.6074796719.

The spelling of 361868791 in words is "three hundred sixty-one million, eight hundred sixty-eight thousand, seven hundred ninety-one".