961813612 has 6 divisors (see below), whose sum is σ = 1683173828. Its totient is φ = 480906804.

The previous prime is 961813591. The next prime is 961813613. The reversal of 961813612 is 216318169.

It is not an unprimeable number, because it can be changed into a prime (961813613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120226698 + ... + 120226705.

Almost surely, 2^961813612 is an apocalyptic number.

It is an amenable number.

961813612 is a deficient number, since it is larger than the sum of its proper divisors (721360216).

961813612 is a wasteful number, since it uses less digits than its factorization.

961813612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240453407 (or 240453405 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 961813612 is about 31013.1199978332. The cubic root of 961813612 is about 987.1056544760.

The spelling of 961813612 in words is "nine hundred sixty-one million, eight hundred thirteen thousand, six hundred twelve".