986390254742 has 4 divisors (see below), whose sum is σ = 1479585382116. Its totient is φ = 493195127370.

The previous prime is 986390254739. The next prime is 986390254747. The reversal of 986390254742 is 247452093689.

986390254742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986390254747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246597563684 + ... + 246597563687.

It is an arithmetic number, because the mean of its divisors is an integer number (369896345529).

Almost surely, 2^986390254742 is an apocalyptic number.

986390254742 is a deficient number, since it is larger than the sum of its proper divisors (493195127374).

986390254742 is a wasteful number, since it uses less digits than its factorization.

986390254742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493195127373.

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 986390254742 in words is "nine hundred eighty-six billion, three hundred ninety million, two hundred fifty-four thousand, seven hundred forty-two".