387952191930 has 16 divisors (see below), whose sum is σ = 931085260704. Its totient is φ = 103453917840.

The previous prime is 387952191877. The next prime is 387952191937. The reversal of 387952191930 is 39191259783.

It is not an unprimeable number, because it can be changed into a prime (387952191937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6465869836 + ... + 6465869895.

It is an arithmetic number, because the mean of its divisors is an integer number (58192828794).

Almost surely, 2^387952191930 is an apocalyptic number.

387952191930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

387952191930 is an abundant number, since it is smaller than the sum of its proper divisors (543133068774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387952191930 is a wasteful number, since it uses less digits than its factorization.

387952191930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12931739741.

The product of its (nonzero) digits is 3674160, while the sum is 57.

The spelling of 387952191930 in words is "three hundred eighty-seven billion, nine hundred fifty-two million, one hundred ninety-one thousand, nine hundred thirty".