7135396840 has 64 divisors (see below), whose sum is σ = 18861413760. Its totient is φ = 2395096320.

The previous prime is 7135396771. The next prime is 7135396847. The reversal of 7135396840 is 486935317.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7135396847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618004 + ... + 629443.

It is an arithmetic number, because the mean of its divisors is an integer number (294709590).

Almost surely, 2^7135396840 is an apocalyptic number.

It is an amenable number.

7135396840 is an abundant number, since it is smaller than the sum of its proper divisors (11726016920).

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

7135396840 is a wasteful number, since it uses less digits than its factorization.

7135396840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247482 (or 1247478 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 7135396840 is about 84471.2781956092. The cubic root of 7135396840 is about 1925.1860698309.

The spelling of 7135396840 in words is "seven billion, one hundred thirty-five million, three hundred ninety-six thousand, eight hundred forty".