142826397381 has 12 divisors (see below), whose sum is σ = 206442444000. Its totient is φ = 95154068520.

The previous prime is 142826397377. The next prime is 142826397397. The reversal of 142826397381 is 183793628241.

It is a happy number.

142826397381 is a `hidden beast` number, since 1 + 42 + 82 + 63 + 97 + 381 = 666.

It is not a de Polignac number, because 142826397381 - 2² = 142826397377 is a prime.

It is a super-2 number, since 2×142826397381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142826397341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5279905 + ... + 5306886.

It is an arithmetic number, because the mean of its divisors is an integer number (17203537000).

Almost surely, 2^142826397381 is an apocalyptic number.

It is an amenable number.

142826397381 is a deficient number, since it is larger than the sum of its proper divisors (63616046619).

142826397381 is a wasteful number, since it uses less digits than its factorization.

142826397381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10588296 (or 10588293 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 142826397381 in words is "one hundred forty-two billion, eight hundred twenty-six million, three hundred ninety-seven thousand, three hundred eighty-one".