387214299381 has 64 divisors (see below), whose sum is σ = 668303032320. Its totient is φ = 193926769920.

The previous prime is 387214299361. The next prime is 387214299391. The reversal of 387214299381 is 183992412783.

It is a happy number.

It is not a de Polignac number, because 387214299381 - 2⁵ = 387214299349 is a prime.

It is a super-2 number, since 2×387214299381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387214299361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16900 + ... + 880178.

It is an arithmetic number, because the mean of its divisors is an integer number (10442234880).

Almost surely, 2^387214299381 is an apocalyptic number.

387214299381 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

387214299381 is a deficient number, since it is larger than the sum of its proper divisors (281088732939).

387214299381 is a wasteful number, since it uses less digits than its factorization.

387214299381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863386.

The product of its digits is 5225472, while the sum is 57.

The spelling of 387214299381 in words is "three hundred eighty-seven billion, two hundred fourteen million, two hundred ninety-nine thousand, three hundred eighty-one".