7138402378427 has 8 divisors (see below), whose sum is σ = 7245001179456. Its totient is φ = 7031805209352.

The previous prime is 7138402378421. The next prime is 7138402378463. The reversal of 7138402378427 is 7248732048317.

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 7138402378427 - 2³² = 7134107411131 is a prime.

It is a super-3 number, since 3×7138402378427³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7138402378421) 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, 10610948 + ... + 11263614.

It is an arithmetic number, because the mean of its divisors is an integer number (905625147432).

Almost surely, 2^{7138402378427} is an apocalyptic number.

7138402378427 is a deficient number, since it is larger than the sum of its proper divisors (106598801029).

7138402378427 is a wasteful number, since it uses less digits than its factorization.

7138402378427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815977.

The product of its (nonzero) digits is 12644352, while the sum is 56.

The spelling of 7138402378427 in words is "seven trillion, one hundred thirty-eight billion, four hundred two million, three hundred seventy-eight thousand, four hundred twenty-seven".