261969496 has 8 divisors (see below), whose sum is σ = 491192820. Its totient is φ = 130984744.

The previous prime is 261969469. The next prime is 261969523. The reversal of 261969496 is 694969162.

It is an interprime number because it is at equal distance from previous prime (261969469) and next prime (261969523).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16373086 + ... + 16373101.

Almost surely, 2^261969496 is an apocalyptic number.

It is an amenable number.

261969496 is a deficient number, since it is larger than the sum of its proper divisors (229223324).

261969496 is a wasteful number, since it uses less digits than its factorization.

261969496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32746193 (or 32746189 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 52.

The square root of 261969496 is about 16185.4717571037. The cubic root of 261969496 is about 639.8579567581.

The spelling of 261969496 in words is "two hundred sixty-one million, nine hundred sixty-nine thousand, four hundred ninety-six".