71611976812996 has 27 divisors (see below), whose sum is σ = 126577067602503. Its totient is φ = 35450627431200.

The previous prime is 71611976812993. The next prime is 71611976813033. The reversal of 71611976812996 is 69921867911617.

The square root of 71611976812996 is 8462386.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 53733151484100 + 17878825328896 = 7330290^2 + 4228336^2 .

It is a super-3 number, since 3×71611976812996³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71611976812993) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1709381026 + ... + 1709422918.

Almost surely, 2^{71611976812996} is an apocalyptic number.

71611976812996 is the 8462386-th square number.

It is an amenable number.

71611976812996 is a deficient number, since it is larger than the sum of its proper divisors (54965090789507).

71611976812996 is an frugal number, since it uses more digits than its factorization.

71611976812996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83992 (or 41996 counting only the distinct ones).

The product of its digits is 123451776, while the sum is 73.

The spelling of 71611976812996 in words is "seventy-one trillion, six hundred eleven billion, nine hundred seventy-six million, eight hundred twelve thousand, nine hundred ninety-six".