72455040631811 has 16 divisors (see below), whose sum is σ = 76782281516640. Its totient is φ = 68249748376320.

The previous prime is 72455040631783. The next prime is 72455040631849. The reversal of 72455040631811 is 11813604055427.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72455040631811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72455040631891) 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, 209801300 + ... + 210146366.

It is an arithmetic number, because the mean of its divisors is an integer number (4798892594790).

Almost surely, 2^{72455040631811} is an apocalyptic number.

72455040631811 is a deficient number, since it is larger than the sum of its proper divisors (4327240884829).

72455040631811 is a wasteful number, since it uses less digits than its factorization.

72455040631811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521734.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 72455040631811 in words is "seventy-two trillion, four hundred fifty-five billion, forty million, six hundred thirty-one thousand, eight hundred eleven".