71932945377 has 16 divisors (see below), whose sum is σ = 96271206080. Its totient is φ = 47775068352.

The previous prime is 71932945373. The next prime is 71932945387. The reversal of 71932945377 is 77354923917.

It is not a de Polignac number, because 71932945377 - 2² = 71932945373 is a prime.

It is a super-2 number, since 2×71932945377² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71932945373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5934399 + ... + 5946507.

It is an arithmetic number, because the mean of its divisors is an integer number (6016950380).

Almost surely, 2^71932945377 is an apocalyptic number.

It is an amenable number.

71932945377 is a deficient number, since it is larger than the sum of its proper divisors (24338260703).

71932945377 is a wasteful number, since it uses less digits than its factorization.

71932945377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19392.

The product of its digits is 10001880, while the sum is 57.

The spelling of 71932945377 in words is "seventy-one billion, nine hundred thirty-two million, nine hundred forty-five thousand, three hundred seventy-seven".