9490546781 has 4 divisors (see below), whose sum is σ = 9492045600. Its totient is φ = 9489047964.

The previous prime is 9490546763. The next prime is 9490546811. The reversal of 9490546781 is 1876450949.

9490546781 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 a de Polignac number, because none of the positive numbers 2^k-9490546781 is a prime.

It is a super-2 number, since 2×9490546781² (a number of 21 digits) 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 (9490546711) 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, 739871 + ... + 752588.

It is an arithmetic number, because the mean of its divisors is an integer number (2373011400).

Almost surely, 2^9490546781 is an apocalyptic number.

It is an amenable number.

9490546781 is a deficient number, since it is larger than the sum of its proper divisors (1498819).

9490546781 is a wasteful number, since it uses less digits than its factorization.

9490546781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498818.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 9490546781 is about 97419.4373880285. The cubic root of 9490546781 is about 2117.2090648117.

The spelling of 9490546781 in words is "nine billion, four hundred ninety million, five hundred forty-six thousand, seven hundred eighty-one".