764144208045 has 32 divisors (see below), whose sum is σ = 1358561299200. Its totient is φ = 407518765632.

The previous prime is 764144208029. The next prime is 764144208089. The reversal of 764144208045 is 540802441467.

764144208045 is a `hidden beast` number, since 76 + 41 + 4 + 420 + 80 + 45 = 666.

764144208045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 764144208045 - 2⁴ = 764144208029 is a prime.

It is a super-3 number, since 3×764144208045³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2170896 + ... + 2498214.

It is an arithmetic number, because the mean of its divisors is an integer number (42455040600).

Almost surely, 2^764144208045 is an apocalyptic number.

It is an amenable number.

764144208045 is a deficient number, since it is larger than the sum of its proper divisors (594417091155).

764144208045 is a wasteful number, since it uses less digits than its factorization.

764144208045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344626 (or 344620 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 764144208045 in words is "seven hundred sixty-four billion, one hundred forty-four million, two hundred eight thousand, forty-five".