261463366722 has 32 divisors (see below), whose sum is σ = 528412211712. Its totient is φ = 86240530944.

The previous prime is 261463366699. The next prime is 261463366729. The reversal of 261463366722 is 227663364162.

It is a super-3 number, since 3×261463366722³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (261463366729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3482208 + ... + 3556500.

It is an arithmetic number, because the mean of its divisors is an integer number (16512881616).

Almost surely, 2^261463366722 is an apocalyptic number.

261463366722 is an abundant number, since it is smaller than the sum of its proper divisors (266948844990).

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

261463366722 is a wasteful number, since it uses less digits than its factorization.

261463366722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80442.

The product of its digits is 2612736, while the sum is 48.

The spelling of 261463366722 in words is "two hundred sixty-one billion, four hundred sixty-three million, three hundred sixty-six thousand, seven hundred twenty-two".