142864443651 has 16 divisors (see below), whose sum is σ = 201875925888. Its totient is φ = 89558236800.

The previous prime is 142864443647. The next prime is 142864443713. The reversal of 142864443651 is 156344468241.

It is not a de Polignac number, because 142864443651 - 2² = 142864443647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142864443651.

It is not an unprimeable number, because it can be changed into a prime (142864443151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228165 + ... + 1339446.

It is an arithmetic number, because the mean of its divisors is an integer number (12617245368).

Almost surely, 2^142864443651 is an apocalyptic number.

142864443651 is a deficient number, since it is larger than the sum of its proper divisors (59011482237).

142864443651 is a wasteful number, since it uses less digits than its factorization.

142864443651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568722.

The product of its digits is 2211840, while the sum is 48.

The spelling of 142864443651 in words is "one hundred forty-two billion, eight hundred sixty-four million, four hundred forty-three thousand, six hundred fifty-one".