142390972722 has 16 divisors (see below), whose sum is σ = 285287781600. Its totient is φ = 47379351552.

The previous prime is 142390972721. The next prime is 142390972727. The reversal of 142390972722 is 227279093241.

It is a happy number.

It is a super-2 number, since 2×142390972722² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142390972721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21072847 + ... + 21079602.

It is an arithmetic number, because the mean of its divisors is an integer number (17830486350).

Almost surely, 2^142390972722 is an apocalyptic number.

142390972722 is an abundant number, since it is smaller than the sum of its proper divisors (142896808878).

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

142390972722 is a wasteful number, since it uses less digits than its factorization.

142390972722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42153017.

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 142390972722 in words is "one hundred forty-two billion, three hundred ninety million, nine hundred seventy-two thousand, seven hundred twenty-two".