711421167050042 has 4 divisors (see below), whose sum is σ = 1067131750575066. Its totient is φ = 355710583525020.

The previous prime is 711421167050003. The next prime is 711421167050053. The reversal of 711421167050042 is 240050761124117.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 456079974648841 + 255341192401201 = 21356029^2 + 15979399^2 .

It is a super-2 number, since 2×711421167050042² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177855291762509 + ... + 177855291762512.

Almost surely, 2^{711421167050042} is an apocalyptic number.

711421167050042 is a deficient number, since it is larger than the sum of its proper divisors (355710583525024).

711421167050042 is a wasteful number, since it uses less digits than its factorization.

711421167050042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355710583525023.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 711421167050042 in words is "seven hundred eleven trillion, four hundred twenty-one billion, one hundred sixty-seven million, fifty thousand, forty-two".