71672676515 has 16 divisors (see below), whose sum is σ = 99345229920. Its totient is φ = 49059371520.

The previous prime is 71672676511. The next prime is 71672676563. The reversal of 71672676515 is 51567627617.

It is not a de Polignac number, because 71672676515 - 2² = 71672676511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71672676511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38326700 + ... + 38328569.

It is an arithmetic number, because the mean of its divisors is an integer number (6209076870).

Almost surely, 2^71672676515 is an apocalyptic number.

71672676515 is a deficient number, since it is larger than the sum of its proper divisors (27672553405).

71672676515 is a wasteful number, since it uses less digits than its factorization.

71672676515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76655302.

The product of its digits is 3704400, while the sum is 53.

The spelling of 71672676515 in words is "seventy-one billion, six hundred seventy-two million, six hundred seventy-six thousand, five hundred fifteen".