387717050081 has 16 divisors (see below), whose sum is σ = 414246662784. Its totient is φ = 362091442944.

The previous prime is 387717050029. The next prime is 387717050101. The reversal of 387717050081 is 180050717783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387717050081 is a prime.

It is a super-2 number, since 2×387717050081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387717050681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939146 + ... + 1287411.

It is an arithmetic number, because the mean of its divisors is an integer number (25890416424).

Almost surely, 2^387717050081 is an apocalyptic number.

It is an amenable number.

387717050081 is a deficient number, since it is larger than the sum of its proper divisors (26529612703).

387717050081 is a wasteful number, since it uses less digits than its factorization.

387717050081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226760.

The product of its (nonzero) digits is 329280, while the sum is 47.

The spelling of 387717050081 in words is "three hundred eighty-seven billion, seven hundred seventeen million, fifty thousand, eighty-one".