7540662671 has 4 divisors (see below), whose sum is σ = 7554056952. Its totient is φ = 7527268392.

The previous prime is 7540662667. The next prime is 7540662739. The reversal of 7540662671 is 1762660457.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7540662671 - 2² = 7540662667 is a prime.

It is a super-4 number, since 4×7540662671⁴ (a number of 41 digits) contains 4444 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 (7540682671) 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 3 ways as a sum of consecutive naturals, for example, 6696296 + ... + 6697421.

It is an arithmetic number, because the mean of its divisors is an integer number (1888514238).

Almost surely, 2^7540662671 is an apocalyptic number.

7540662671 is a deficient number, since it is larger than the sum of its proper divisors (13394281).

7540662671 is a wasteful number, since it uses less digits than its factorization.

7540662671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13394280.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 7540662671 is about 86836.9890714781. The cubic root of 7540662671 is about 1960.9649794124.

The spelling of 7540662671 in words is "seven billion, five hundred forty million, six hundred sixty-two thousand, six hundred seventy-one".