7139356672 has 78 divisors (see below), whose sum is σ = 16349301528. Its totient is φ = 3053592576.

The previous prime is 7139356661. The next prime is 7139356673. The reversal of 7139356672 is 2766539317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7139356673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14307079 + ... + 14307577.

Almost surely, 2^7139356672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7139356672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8174650764).

7139356672 is an abundant number, since it is smaller than the sum of its proper divisors (9209944856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7139356672 is an frugal number, since it uses more digits than its factorization.

7139356672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 508 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 49.

The square root of 7139356672 is about 84494.7138701588. The cubic root of 7139356672 is about 1925.5421352230.

The spelling of 7139356672 in words is "seven billion, one hundred thirty-nine million, three hundred fifty-six thousand, six hundred seventy-two".