340402653377 has 4 divisors (see below), whose sum is σ = 340409373360. Its totient is φ = 340395933396.

The previous prime is 340402653329. The next prime is 340402653391. The reversal of 340402653377 is 773356204043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773356204043 = 43 ⋅17985028001.

It is a cyclic number.

It is not a de Polignac number, because 340402653377 - 2³⁶ = 271683176641 is a prime.

It is a super-2 number, since 2×340402653377² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340402653397) 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, 3283427 + ... + 3385512.

It is an arithmetic number, because the mean of its divisors is an integer number (85102343340).

Almost surely, 2^340402653377 is an apocalyptic number.

It is an amenable number.

340402653377 is a deficient number, since it is larger than the sum of its proper divisors (6719983).

340402653377 is an equidigital number, since it uses as much as digits as its factorization.

340402653377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719982.

The product of its (nonzero) digits is 1270080, while the sum is 44.

The spelling of 340402653377 in words is "three hundred forty billion, four hundred two million, six hundred fifty-three thousand, three hundred seventy-seven".