387433681049 has 8 divisors (see below), whose sum is σ = 420980570880. Its totient is φ = 355202355600.

The previous prime is 387433680943. The next prime is 387433681051. The reversal of 387433681049 is 940186334783.

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 387433681049 - 2⁸ = 387433680793 is a prime.

It is a super-2 number, since 2×387433681049² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387433680985 and 387433681003.

It is not an unprimeable number, because it can be changed into a prime (387433621049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328890482 + ... + 328891659.

It is an arithmetic number, because the mean of its divisors is an integer number (52622571360).

Almost surely, 2^387433681049 is an apocalyptic number.

It is an amenable number.

387433681049 is a deficient number, since it is larger than the sum of its proper divisors (33546889831).

387433681049 is a wasteful number, since it uses less digits than its factorization.

387433681049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657782191.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 387433681049 in words is "three hundred eighty-seven billion, four hundred thirty-three million, six hundred eighty-one thousand, forty-nine".