142412077478 has 48 divisors (see below), whose sum is σ = 238262562720. Its totient is φ = 63784152960.

The previous prime is 142412077471. The next prime is 142412077499. The reversal of 142412077478 is 874770214241.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142412077471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6299351 + ... + 6321917.

It is an arithmetic number, because the mean of its divisors is an integer number (4963803390).

Almost surely, 2^142412077478 is an apocalyptic number.

142412077478 is a deficient number, since it is larger than the sum of its proper divisors (95850485242).

142412077478 is a wasteful number, since it uses less digits than its factorization.

142412077478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22973 (or 22962 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 47.

The spelling of 142412077478 in words is "one hundred forty-two billion, four hundred twelve million, seventy-seven thousand, four hundred seventy-eight".