387931258480 has 20 divisors (see below), whose sum is σ = 901940176152. Its totient is φ = 155172503360.

The previous prime is 387931258469. The next prime is 387931258493. The reversal of 387931258480 is 84852139783.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×387931258480² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2424570286 + ... + 2424570445.

Almost surely, 2^387931258480 is an apocalyptic number.

It is an amenable number.

387931258480 is an abundant number, since it is smaller than the sum of its proper divisors (514008917672).

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

387931258480 is a wasteful number, since it uses less digits than its factorization.

387931258480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849140744 (or 4849140738 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 387931258480 in words is "three hundred eighty-seven billion, nine hundred thirty-one million, two hundred fifty-eight thousand, four hundred eighty".