261434456030 has 32 divisors (see below), whose sum is σ = 513384265728. Its totient is φ = 95062989600.

The previous prime is 261434455913. The next prime is 261434456077. The reversal of 261434456030 is 30654434162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3911795 + ... + 3978065.

It is an arithmetic number, because the mean of its divisors is an integer number (16043258304).

Almost surely, 2^261434456030 is an apocalyptic number.

261434456030 is a deficient number, since it is larger than the sum of its proper divisors (251949809698).

261434456030 is a wasteful number, since it uses less digits than its factorization.

261434456030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102152.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 261434456030 in words is "two hundred sixty-one billion, four hundred thirty-four million, four hundred fifty-six thousand, thirty".