7540645063 has 16 divisors (see below), whose sum is σ = 8648386560. Its totient is φ = 6440577696.

The previous prime is 7540645043. The next prime is 7540645081. The reversal of 7540645063 is 3605460457.

It is not a de Polignac number, because 7540645063 - 2⁵ = 7540645031 is a prime.

It is a super-2 number, since 2×7540645063² (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 (7540645033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2798745 + ... + 2801437.

It is an arithmetic number, because the mean of its divisors is an integer number (540524160).

Almost surely, 2^7540645063 is an apocalyptic number.

7540645063 is a deficient number, since it is larger than the sum of its proper divisors (1107741497).

7540645063 is a wasteful number, since it uses less digits than its factorization.

7540645063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 7540645063 is about 86836.8876860519. The cubic root of 7540645063 is about 1960.9634530789.

The spelling of 7540645063 in words is "seven billion, five hundred forty million, six hundred forty-five thousand, sixty-three".