342698147991 has 12 divisors (see below), whose sum is σ = 495249577368. Its totient is φ = 228354135984.

The previous prime is 342698147983. The next prime is 342698147999. The reversal of 342698147991 is 199741896243.

342698147991 is a `hidden beast` number, since 3 + 426 + 9 + 81 + 47 + 9 + 91 = 666.

342698147991 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (342698147983) and next prime (342698147999).

It is not a de Polignac number, because 342698147991 - 2³ = 342698147983 is a prime.

It is a super-2 number, since 2×342698147991² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342698147999) 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, 9255165 + ... + 9292118.

It is an arithmetic number, because the mean of its divisors is an integer number (41270798114).

Almost surely, 2^342698147991 is an apocalyptic number.

342698147991 is a deficient number, since it is larger than the sum of its proper divisors (152551429377).

342698147991 is a wasteful number, since it uses less digits than its factorization.

342698147991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18549342 (or 18549339 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The spelling of 342698147991 in words is "three hundred forty-two billion, six hundred ninety-eight million, one hundred forty-seven thousand, nine hundred ninety-one".