261572007476 has 12 divisors (see below), whose sum is σ = 492962629572. Its totient is φ = 120725541888.

The previous prime is 261572007409. The next prime is 261572007493. The reversal of 261572007476 is 674700275162.

261572007476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 64071759376 + 197500248100 = 253124^2 + 444410^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 261572007476.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515115405 + ... + 2515115508.

It is an arithmetic number, because the mean of its divisors is an integer number (41080219131).

Almost surely, 2^261572007476 is an apocalyptic number.

261572007476 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

261572007476 is a deficient number, since it is larger than the sum of its proper divisors (231390622096).

261572007476 is a wasteful number, since it uses less digits than its factorization.

261572007476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030230930 (or 5030230928 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 261572007476 in words is "two hundred sixty-one billion, five hundred seventy-two million, seven thousand, four hundred seventy-six".