340781713886 has 4 divisors (see below), whose sum is σ = 511172570832. Its totient is φ = 170390856942.

The previous prime is 340781713837. The next prime is 340781713913. The reversal of 340781713886 is 688317187043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 688317187043 = 2083 ⋅330445121.

It is a super-2 number, since 2×340781713886² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85195428470 + ... + 85195428473.

It is an arithmetic number, because the mean of its divisors is an integer number (127793142708).

Almost surely, 2^340781713886 is an apocalyptic number.

340781713886 is a deficient number, since it is larger than the sum of its proper divisors (170390856946).

340781713886 is a wasteful number, since it uses less digits than its factorization.

340781713886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170390856945.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 340781713886 in words is "three hundred forty billion, seven hundred eighty-one million, seven hundred thirteen thousand, eight hundred eighty-six".