4308394493878 has 4 divisors (see below), whose sum is σ = 6462591740820. Its totient is φ = 2154197246938.

The previous prime is 4308394493867. The next prime is 4308394493903. The reversal of 4308394493878 is 8783944938034.

It is a happy number.

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

It is a super-2 number, since 2×4308394493878² (a number of 26 digits) contains 22 as substring.

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, 1077098623468 + ... + 1077098623471.

It is an arithmetic number, because the mean of its divisors is an integer number (1615647935205).

Almost surely, 2^{4308394493878} is an apocalyptic number.

4308394493878 is a deficient number, since it is larger than the sum of its proper divisors (2154197246942).

4308394493878 is a wasteful number, since it uses less digits than its factorization.

4308394493878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154197246941.

The product of its (nonzero) digits is 501645312, while the sum is 70.

The spelling of 4308394493878 in words is "four trillion, three hundred eight billion, three hundred ninety-four million, four hundred ninety-three thousand, eight hundred seventy-eight".