142804208505 has 64 divisors (see below), whose sum is σ = 267051294720. Its totient is φ = 63804858624.

The previous prime is 142804208489. The next prime is 142804208587. The reversal of 142804208505 is 505802408241.

It is a happy number.

It is not a de Polignac number, because 142804208505 - 2⁴ = 142804208489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3627387 + ... + 3666543.

It is an arithmetic number, because the mean of its divisors is an integer number (4172676480).

Almost surely, 2^142804208505 is an apocalyptic number.

142804208505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142804208505 is a deficient number, since it is larger than the sum of its proper divisors (124247086215).

142804208505 is a wasteful number, since it uses less digits than its factorization.

142804208505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39958.

The product of its (nonzero) digits is 102400, while the sum is 39.

The spelling of 142804208505 in words is "one hundred forty-two billion, eight hundred four million, two hundred eight thousand, five hundred five".