71988146241 has 16 divisors (see below), whose sum is σ = 105144523968. Its totient is φ = 43448140800.

The previous prime is 71988146221. The next prime is 71988146249. The reversal of 71988146241 is 14264188917.

It is not a de Polignac number, because 71988146241 - 2¹⁵ = 71988113473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71988146249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4517896 + ... + 4533801.

It is an arithmetic number, because the mean of its divisors is an integer number (6571532748).

Almost surely, 2^71988146241 is an apocalyptic number.

It is an amenable number.

71988146241 is a deficient number, since it is larger than the sum of its proper divisors (33156377727).

71988146241 is a wasteful number, since it uses less digits than its factorization.

71988146241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051952.

The product of its digits is 774144, while the sum is 51.

The spelling of 71988146241 in words is "seventy-one billion, nine hundred eighty-eight million, one hundred forty-six thousand, two hundred forty-one".