7875744426 has 64 divisors (see below), whose sum is σ = 19751126400. Its totient is φ = 2304288000.

The previous prime is 7875744419. The next prime is 7875744449. The reversal of 7875744426 is 6244475787.

7875744426 is a `hidden beast` number, since 7 + 8 + 7 + 574 + 44 + 26 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211375 + ... + 245826.

It is an arithmetic number, because the mean of its divisors is an integer number (308611350).

Almost surely, 2^7875744426 is an apocalyptic number.

7875744426 is an abundant number, since it is smaller than the sum of its proper divisors (11875381974).

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

7875744426 is a wasteful number, since it uses less digits than its factorization.

7875744426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457252 (or 457246 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 54.

The square root of 7875744426 is about 88745.3910127168. The cubic root of 7875744426 is about 1989.5912922087.

The spelling of 7875744426 in words is "seven billion, eight hundred seventy-five million, seven hundred forty-four thousand, four hundred twenty-six".