140422707778 has 8 divisors (see below), whose sum is σ = 210644308620. Its totient is φ = 70207938240.

The previous prime is 140422707749. The next prime is 140422707797. The reversal of 140422707778 is 877707224041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139265551489 + 1157156289 = 373183^2 + 34017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656123 + ... + 1738846.

Almost surely, 2^140422707778 is an apocalyptic number.

140422707778 is a deficient number, since it is larger than the sum of its proper divisors (70221600842).

140422707778 is a wasteful number, since it uses less digits than its factorization.

140422707778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415652.

The product of its (nonzero) digits is 1229312, while the sum is 49.

The spelling of 140422707778 in words is "one hundred forty billion, four hundred twenty-two million, seven hundred seven thousand, seven hundred seventy-eight".