7138404428387 has 8 divisors (see below), whose sum is σ = 7145041708896. Its totient is φ = 7131767591232.

The previous prime is 7138404428357. The next prime is 7138404428401. The reversal of 7138404428387 is 7838244048317.

7138404428387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7138404428387 - 2²⁶ = 7138337319523 is a prime.

It is a super-2 number, since 2×7138404428387² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7138404428347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38234498 + ... + 38420744.

It is an arithmetic number, because the mean of its divisors is an integer number (893130213612).

Almost surely, 2^{7138404428387} is an apocalyptic number.

7138404428387 is a deficient number, since it is larger than the sum of its proper divisors (6637280509).

7138404428387 is a wasteful number, since it uses less digits than its factorization.

7138404428387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221677.

The product of its (nonzero) digits is 28901376, while the sum is 59.

The spelling of 7138404428387 in words is "seven trillion, one hundred thirty-eight billion, four hundred four million, four hundred twenty-eight thousand, three hundred eighty-seven".