261447232474 has 16 divisors (see below), whose sum is σ = 397866268800. Its totient is φ = 128828054880.

The previous prime is 261447232469. The next prime is 261447232493. The reversal of 261447232474 is 474232744162.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547624 + ... + 907075.

It is an arithmetic number, because the mean of its divisors is an integer number (24866641800).

Almost surely, 2^261447232474 is an apocalyptic number.

261447232474 is a deficient number, since it is larger than the sum of its proper divisors (136419036326).

261447232474 is a wasteful number, since it uses less digits than its factorization.

261447232474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456005.

The product of its digits is 1806336, while the sum is 46.

The spelling of 261447232474 in words is "two hundred sixty-one billion, four hundred forty-seven million, two hundred thirty-two thousand, four hundred seventy-four".