340342277581 has 4 divisors (see below), whose sum is σ = 341150691964. Its totient is φ = 339533863200.

The previous prime is 340342277477. The next prime is 340342277591. The reversal of 340342277581 is 185772243043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 171367021225 + 168975256356 = 413965^2 + 411066^2 .

It is a cyclic number.

It is not a de Polignac number, because 340342277581 - 2⁷ = 340342277453 is a prime.

It is a super-2 number, since 2×340342277581² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340342277591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404206560 + ... + 404207401.

It is an arithmetic number, because the mean of its divisors is an integer number (85287672991).

Almost surely, 2^340342277581 is an apocalyptic number.

It is an amenable number.

340342277581 is a deficient number, since it is larger than the sum of its proper divisors (808414383).

340342277581 is an equidigital number, since it uses as much as digits as its factorization.

340342277581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808414382.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 340342277581 in words is "three hundred forty billion, three hundred forty-two million, two hundred seventy-seven thousand, five hundred eighty-one".