142402740077 has 32 divisors (see below), whose sum is σ = 161593850880. Its totient is φ = 124570575360.

The previous prime is 142402740037. The next prime is 142402740097. The reversal of 142402740077 is 770047204241.

It is a cyclic number.

It is not a de Polignac number, because 142402740077 - 2²⁰ = 142401691501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142402740077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142402740037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7087748 + ... + 7107810.

It is an arithmetic number, because the mean of its divisors is an integer number (5049807840).

Almost surely, 2^142402740077 is an apocalyptic number.

It is an amenable number.

142402740077 is a deficient number, since it is larger than the sum of its proper divisors (19191110803).

142402740077 is a wasteful number, since it uses less digits than its factorization.

142402740077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20453.

The product of its (nonzero) digits is 87808, while the sum is 38.

The spelling of 142402740077 in words is "one hundred forty-two billion, four hundred two million, seven hundred forty thousand, seventy-seven".