7139241840 has 80 divisors (see below), whose sum is σ = 22646371968. Its totient is φ = 1859520768.

The previous prime is 7139241829. The next prime is 7139241911. The reversal of 7139241840 is 481429317.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335574 + ... + 356213.

Almost surely, 2^7139241840 is an apocalyptic number.

It is an amenable number.

7139241840 is an abundant number, since it is smaller than the sum of its proper divisors (15507130128).

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

7139241840 is a wasteful number, since it uses less digits than its factorization.

7139241840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691846 (or 691840 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 7139241840 is about 84494.0343456270. The cubic root of 7139241840 is about 1925.5318114618.

The spelling of 7139241840 in words is "seven billion, one hundred thirty-nine million, two hundred forty-one thousand, eight hundred forty".