361766491 has 6 divisors (see below), whose sum is σ = 363092660. Its totient is φ = 360442656.

The previous prime is 361766407. The next prime is 361766507. The reversal of 361766491 is 194667163.

It is a de Polignac number, because none of the positive numbers 2^k-361766491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361766401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 369795 + ... + 370771.

Almost surely, 2^361766491 is an apocalyptic number.

361766491 is a deficient number, since it is larger than the sum of its proper divisors (1326169).

361766491 is an frugal number, since it uses more digits than its factorization.

361766491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333 (or 1356 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 361766491 is about 19020.1601202514. The cubic root of 361766491 is about 712.5403221666.

The spelling of 361766491 in words is "three hundred sixty-one million, seven hundred sixty-six thousand, four hundred ninety-one".