7139657340 has 36 divisors (see below), whose sum is σ = 21656961144. Its totient is φ = 1903908576.

The previous prime is 7139657333. The next prime is 7139657353. The reversal of 7139657340 is 437569317.

7139657340 is a `hidden beast` number, since 7 + 1 + 39 + 6 + 573 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19832202 + ... + 19832561.

It is an arithmetic number, because the mean of its divisors is an integer number (601582254).

Almost surely, 2^7139657340 is an apocalyptic number.

It is an amenable number.

7139657340 is an abundant number, since it is smaller than the sum of its proper divisors (14517303804).

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

7139657340 is a wasteful number, since it uses less digits than its factorization.

7139657340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39664778 (or 39664773 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The square root of 7139657340 is about 84496.4930633219. The cubic root of 7139657340 is about 1925.5691657059.

The spelling of 7139657340 in words is "seven billion, one hundred thirty-nine million, six hundred fifty-seven thousand, three hundred forty".