3640142767 has 8 divisors (see below), whose sum is σ = 3715048800. Its totient is φ = 3565467360.

The previous prime is 3640142743. The next prime is 3640142801. The reversal of 3640142767 is 7672410463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3640142767 - 2¹⁵ = 3640109999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640112767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25584 + ... + 89077.

It is an arithmetic number, because the mean of its divisors is an integer number (464381100).

Almost surely, 2^3640142767 is an apocalyptic number.

3640142767 is a deficient number, since it is larger than the sum of its proper divisors (74906033).

3640142767 is a wasteful number, since it uses less digits than its factorization.

3640142767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115313.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 3640142767 is about 60333.5956743836. The cubic root of 3640142767 is about 1538.2944471798.

The spelling of 3640142767 in words is "three billion, six hundred forty million, one hundred forty-two thousand, seven hundred sixty-seven".