7854348139 has 24 divisors (see below), whose sum is σ = 9159352560. Its totient is φ = 6671448000.

The previous prime is 7854348133. The next prime is 7854348149. The reversal of 7854348139 is 9318434587.

It is not a de Polignac number, because 7854348139 - 2⁵ = 7854348107 is a prime.

It is a super-2 number, since 2×7854348139² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7854348133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293749 + ... + 319369.

It is an arithmetic number, because the mean of its divisors is an integer number (381639690).

Almost surely, 2^7854348139 is an apocalyptic number.

7854348139 is a deficient number, since it is larger than the sum of its proper divisors (1305004421).

7854348139 is a wasteful number, since it uses less digits than its factorization.

7854348139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25723 (or 25692 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 7854348139 is about 88624.7603043303. The cubic root of 7854348139 is about 1987.7879293522.

The spelling of 7854348139 in words is "seven billion, eight hundred fifty-four million, three hundred forty-eight thousand, one hundred thirty-nine".