7834126457381 has 16 divisors (see below), whose sum is σ = 9010539964416. Its totient is φ = 6672028237056.

The previous prime is 7834126457347. The next prime is 7834126457393. The reversal of 7834126457381 is 1837546214387.

It is not a de Polignac number, because 7834126457381 - 2⁶ = 7834126457317 is a prime.

It is a super-2 number, since 2×7834126457381² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7834126457381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7834126457081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66548285 + ... + 66665901.

It is an arithmetic number, because the mean of its divisors is an integer number (563158747776).

Almost surely, 2^{7834126457381} is an apocalyptic number.

It is an amenable number.

7834126457381 is a deficient number, since it is larger than the sum of its proper divisors (1176413507035).

7834126457381 is a wasteful number, since it uses less digits than its factorization.

7834126457381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178388.

The product of its digits is 27095040, while the sum is 59.

The spelling of 7834126457381 in words is "seven trillion, eight hundred thirty-four billion, one hundred twenty-six million, four hundred fifty-seven thousand, three hundred eighty-one".