387135405982 has 32 divisors (see below), whose sum is σ = 649342461600. Its totient is φ = 171875157888.

The previous prime is 387135405871. The next prime is 387135405991. The reversal of 387135405982 is 289504531783.

It is a super-2 number, since 2×387135405982² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 751528 + ... + 1157179.

It is an arithmetic number, because the mean of its divisors is an integer number (20291951925).

Almost surely, 2^387135405982 is an apocalyptic number.

387135405982 is a deficient number, since it is larger than the sum of its proper divisors (262207055618).

387135405982 is a wasteful number, since it uses less digits than its factorization.

387135405982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909020.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 387135405982 in words is "three hundred eighty-seven billion, one hundred thirty-five million, four hundred five thousand, nine hundred eighty-two".