7126318956978 has 48 divisors (see below), whose sum is σ = 16738197368256. Its totient is φ = 2178192232800.

The previous prime is 7126318956943. The next prime is 7126318956983. The reversal of 7126318956978 is 8796598136217.

7126318956978 is a `hidden beast` number, since 7 + 1 + 26 + 31 + 8 + 9 + 569 + 7 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100806900 + ... + 100877567.

It is an arithmetic number, because the mean of its divisors is an integer number (348712445172).

Almost surely, 2^{7126318956978} is an apocalyptic number.

7126318956978 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

7126318956978 is an abundant number, since it is smaller than the sum of its proper divisors (9611878411278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7126318956978 is a wasteful number, since it uses less digits than its factorization.

7126318956978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201684639 (or 201684636 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 72.

The spelling of 7126318956978 in words is "seven trillion, one hundred twenty-six billion, three hundred eighteen million, nine hundred fifty-six thousand, nine hundred seventy-eight".