387642474541 has 32 divisors (see below), whose sum is σ = 463357440000. Its totient is φ = 323971724160.

The previous prime is 387642474533. The next prime is 387642474553. The reversal of 387642474541 is 145474246783.

It is a happy number.

It is not a de Polignac number, because 387642474541 - 2³ = 387642474533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387642474511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27401716 + ... + 27415858.

It is an arithmetic number, because the mean of its divisors is an integer number (14479920000).

Almost surely, 2^387642474541 is an apocalyptic number.

It is an amenable number.

387642474541 is a deficient number, since it is larger than the sum of its proper divisors (75714965459).

387642474541 is a wasteful number, since it uses less digits than its factorization.

387642474541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16154 (or 16140 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 55.

The spelling of 387642474541 in words is "three hundred eighty-seven billion, six hundred forty-two million, four hundred seventy-four thousand, five hundred forty-one".