142977857430 has 64 divisors (see below), whose sum is σ = 345612754368. Its totient is φ = 37853836800.

The previous prime is 142977857401. The next prime is 142977857443. The reversal of 142977857430 is 34758779241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6116044 + ... + 6139376.

It is an arithmetic number, because the mean of its divisors is an integer number (5400199287).

Almost surely, 2^142977857430 is an apocalyptic number.

142977857430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142977857430 is an abundant number, since it is smaller than the sum of its proper divisors (202634896938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142977857430 is a wasteful number, since it uses less digits than its factorization.

142977857430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24801.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 142977857430 in words is "one hundred forty-two billion, nine hundred seventy-seven million, eight hundred fifty-seven thousand, four hundred thirty".