4075497781 has 4 divisors (see below), whose sum is σ = 4075747200. Its totient is φ = 4075248364.

The previous prime is 4075497761. The next prime is 4075497787. The reversal of 4075497781 is 1877945704.

4075497781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4075497781 - 2⁵ = 4075497749 is a prime.

It is a super-2 number, since 2×4075497781² = 33219364325871847922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4075497787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98341 + ... + 133498.

It is an arithmetic number, because the mean of its divisors is an integer number (1018936800).

Almost surely, 2^4075497781 is an apocalyptic number.

It is an amenable number.

4075497781 is a deficient number, since it is larger than the sum of its proper divisors (249419).

4075497781 is a wasteful number, since it uses less digits than its factorization.

4075497781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249418.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The square root of 4075497781 is about 63839.6254766583. The cubic root of 4075497781 is about 1597.3259737136.

The spelling of 4075497781 in words is "four billion, seventy-five million, four hundred ninety-seven thousand, seven hundred eighty-one".