142064431861 has 16 divisors (see below), whose sum is σ = 157211853696. Its totient is φ = 127290240000.

The previous prime is 142064431849. The next prime is 142064431903. The reversal of 142064431861 is 168134460241.

142064431861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142064431861 - 2¹⁵ = 142064399093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142064431261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2597881 + ... + 2652001.

It is an arithmetic number, because the mean of its divisors is an integer number (9825740856).

Almost surely, 2^142064431861 is an apocalyptic number.

142064431861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142064431861 is a deficient number, since it is larger than the sum of its proper divisors (15147421835).

142064431861 is a wasteful number, since it uses less digits than its factorization.

142064431861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57564.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 142064431861 in words is "one hundred forty-two billion, sixty-four million, four hundred thirty-one thousand, eight hundred sixty-one".