390764493471745 has 16 divisors (see below), whose sum is σ = 478342598852160. Its totient is φ = 306342388066624.

The previous prime is 390764493471739. The next prime is 390764493471761. The reversal of 390764493471745 is 547174394467093.

It is a cyclic number.

It is not a de Polignac number, because 390764493471745 - 2¹⁹ = 390764492947457 is a prime.

It is a super-2 number, since 2×390764493471745² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891306235 + ... + 891744544.

It is an arithmetic number, because the mean of its divisors is an integer number (29896412428260).

Almost surely, 2^{390764493471745} is an apocalyptic number.

It is an amenable number.

390764493471745 is a deficient number, since it is larger than the sum of its proper divisors (87578105380415).

390764493471745 is a wasteful number, since it uses less digits than its factorization.

390764493471745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783051664.

The product of its (nonzero) digits is 1920360960, while the sum is 73.

The spelling of 390764493471745 in words is "three hundred ninety trillion, seven hundred sixty-four billion, four hundred ninety-three million, four hundred seventy-one thousand, seven hundred forty-five".