75801681 has 12 divisors (see below), whose sum is σ = 109898880. Its totient is φ = 50346360.

The previous prime is 75801673. The next prime is 75801701. The reversal of 75801681 is 18610857.

It is not a de Polignac number, because 75801681 - 2³ = 75801673 is a prime.

It is a super-2 number, since 2×75801681² = 11491789684851522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (75801631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13101 + ... + 17978.

It is an arithmetic number, because the mean of its divisors is an integer number (9158240).

Almost surely, 2^75801681 is an apocalyptic number.

It is an amenable number.

75801681 is a deficient number, since it is larger than the sum of its proper divisors (34097199).

75801681 is a wasteful number, since it uses less digits than its factorization.

75801681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31356 (or 31353 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 75801681 is about 8706.4160824073. The cubic root of 75801681 is about 423.2135970018.

It can be divided in two parts, 7580 and 1681, that added together give a cube (9261 = 21³).

The spelling of 75801681 in words is "seventy-five million, eight hundred one thousand, six hundred eighty-one".