73868354513811 has 128 divisors (see below), whose sum is σ = 134365116211200. Its totient is φ = 39466711278720.

The previous prime is 73868354513809. The next prime is 73868354513813. The reversal of 73868354513811 is 11831545386837.

73868354513811 is a `hidden beast` number, since 7 + 3 + 8 + 6 + 8 + 3 + 545 + 1 + 3 + 81 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (73868354513809) and next prime (73868354513813).

It is not a de Polignac number, because 73868354513811 - 2¹ = 73868354513809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73868354513813) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 56453500 + ... + 57747158.

It is an arithmetic number, because the mean of its divisors is an integer number (1049727470400).

Almost surely, 2^{73868354513811} is an apocalyptic number.

73868354513811 is a deficient number, since it is larger than the sum of its proper divisors (60496761697389).

73868354513811 is a wasteful number, since it uses less digits than its factorization.

73868354513811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294358 (or 1294352 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 73868354513811 in words is "seventy-three trillion, eight hundred sixty-eight billion, three hundred fifty-four million, five hundred thirteen thousand, eight hundred eleven".