342246978418 has 4 divisors (see below), whose sum is σ = 513370467630. Its totient is φ = 171123489208.

The previous prime is 342246978401. The next prime is 342246978449. The reversal of 342246978418 is 814879642243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814879642243 = 1949 ⋅418101407.

It can be written as a sum of positive squares in only one way, i.e., 321186293289 + 21060685129 = 566733^2 + 145123^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85561744603 + ... + 85561744606.

Almost surely, 2^342246978418 is an apocalyptic number.

342246978418 is a deficient number, since it is larger than the sum of its proper divisors (171123489212).

342246978418 is a wasteful number, since it uses less digits than its factorization.

342246978418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171123489211.

The product of its digits is 18579456, while the sum is 58.

The spelling of 342246978418 in words is "three hundred forty-two billion, two hundred forty-six million, nine hundred seventy-eight thousand, four hundred eighteen".