4338378138677 has 4 divisors (see below), whose sum is σ = 4732776151296. Its totient is φ = 3943980126060.

The previous prime is 4338378138617. The next prime is 4338378138691. The reversal of 4338378138677 is 7768318738334.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4338378138677 is a prime.

It is a super-2 number, since 2×4338378138677² (a number of 26 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 (4338378138607) 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, 197199006293 + ... + 197199006314.

It is an arithmetic number, because the mean of its divisors is an integer number (1183194037824).

Almost surely, 2^{4338378138677} is an apocalyptic number.

It is an amenable number.

4338378138677 is a deficient number, since it is larger than the sum of its proper divisors (394398012619).

4338378138677 is a wasteful number, since it uses less digits than its factorization.

4338378138677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394398012618.

The product of its digits is 341397504, while the sum is 68.

The spelling of 4338378138677 in words is "four trillion, three hundred thirty-eight billion, three hundred seventy-eight million, one hundred thirty-eight thousand, six hundred seventy-seven".