387342654247 has 4 divisors (see below), whose sum is σ = 393907784040. Its totient is φ = 380777524456.

The previous prime is 387342654217. The next prime is 387342654341. The reversal of 387342654247 is 742456243783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742456243783 = 5783 ⋅128386001.

It is a cyclic number.

It is not a de Polignac number, because 387342654247 - 2¹¹ = 387342652199 is a prime.

It is a super-2 number, since 2×387342654247² (a number of 24 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 (387342654217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3282564808 + ... + 3282564925.

It is an arithmetic number, because the mean of its divisors is an integer number (98476946010).

Almost surely, 2^387342654247 is an apocalyptic number.

387342654247 is a deficient number, since it is larger than the sum of its proper divisors (6565129793).

387342654247 is an equidigital number, since it uses as much as digits as its factorization.

387342654247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565129792.

The product of its digits is 27095040, while the sum is 55.

The spelling of 387342654247 in words is "three hundred eighty-seven billion, three hundred forty-two million, six hundred fifty-four thousand, two hundred forty-seven".