261433415300 has 36 divisors (see below), whose sum is σ = 572515218660. Its totient is φ = 103613973120.

The previous prime is 261433415293. The next prime is 261433415317. The reversal of 261433415300 is 3514334162.

It can be written as a sum of positive squares in 6 ways, for example, as 238826116 + 261194589184 = 15454^2 + 511072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11981459 + ... + 12003258.

Almost surely, 2^261433415300 is an apocalyptic number.

261433415300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261433415300 is an abundant number, since it is smaller than the sum of its proper divisors (311081803360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261433415300 is a wasteful number, since it uses less digits than its factorization.

261433415300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23984840 (or 23984833 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 261433415300 its reverse (3514334162), we get a palindrome (264947749462).

It can be divided in two parts, 26143 and 3415300, that added together give a palindrome (3441443).

The spelling of 261433415300 in words is "two hundred sixty-one billion, four hundred thirty-three million, four hundred fifteen thousand, three hundred".