142297851720 has 64 divisors (see below), whose sum is σ = 432741438720. Its totient is φ = 37426281984.

The previous prime is 142297851719. The next prime is 142297851727. The reversal of 142297851720 is 27158792241.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 142297851720.

It is not an unprimeable number, because it can be changed into a prime (142297851727) 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, 8113264 + ... + 8130783.

It is an arithmetic number, because the mean of its divisors is an integer number (6761584980).

Almost surely, 2^142297851720 is an apocalyptic number.

142297851720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142297851720 is an abundant number, since it is smaller than the sum of its proper divisors (290443587000).

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

142297851720 is a wasteful number, since it uses less digits than its factorization.

142297851720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16244134 (or 16244130 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 142297851720 in words is "one hundred forty-two billion, two hundred ninety-seven million, eight hundred fifty-one thousand, seven hundred twenty".