345684101977 has 4 divisors (see below), whose sum is σ = 347593959076. Its totient is φ = 343774244880.

The previous prime is 345684101969. The next prime is 345684101981. The reversal of 345684101977 is 779101486543.

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 69230029456 + 276454072521 = 263116^2 + 525789^2 .

It is a cyclic number.

It is not a de Polignac number, because 345684101977 - 2³ = 345684101969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345684101177) 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, 954928278 + ... + 954928639.

It is an arithmetic number, because the mean of its divisors is an integer number (86898489769).

Almost surely, 2^345684101977 is an apocalyptic number.

It is an amenable number.

345684101977 is a deficient number, since it is larger than the sum of its proper divisors (1909857099).

345684101977 is a wasteful number, since it uses less digits than its factorization.

345684101977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909857098.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 345684101977 in words is "three hundred forty-five billion, six hundred eighty-four million, one hundred one thousand, nine hundred seventy-seven".