7142235720520 has 32 divisors (see below), whose sum is σ = 16070228824320. Its totient is φ = 2856859007680.

The previous prime is 7142235720427. The next prime is 7142235720611. The reversal of 7142235720520 is 250275322417.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307219 + ... + 4428061.

It is an arithmetic number, because the mean of its divisors is an integer number (502194650760).

Almost surely, 2^{7142235720520} is an apocalyptic number.

It is an amenable number.

7142235720520 is an abundant number, since it is smaller than the sum of its proper divisors (8927993103800).

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

7142235720520 is a wasteful number, since it uses less digits than its factorization.

7142235720520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205045 (or 2205041 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 40.

The spelling of 7142235720520 in words is "seven trillion, one hundred forty-two billion, two hundred thirty-five million, seven hundred twenty thousand, five hundred twenty".