7542897426 has 48 divisors (see below), whose sum is σ = 17287186176. Its totient is φ = 2372027328.

The previous prime is 7542897379. The next prime is 7542897443. The reversal of 7542897426 is 6247982457.

7542897426 is a `hidden beast` number, since 7 + 542 + 8 + 9 + 74 + 26 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94570 + ... + 155013.

It is an arithmetic number, because the mean of its divisors is an integer number (360149712).

Almost surely, 2^7542897426 is an apocalyptic number.

7542897426 is an abundant number, since it is smaller than the sum of its proper divisors (9744288750).

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

7542897426 is a wasteful number, since it uses less digits than its factorization.

7542897426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249687 (or 249684 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 7542897426 is about 86849.8556475484. The cubic root of 7542897426 is about 1961.1586778376.

The spelling of 7542897426 in words is "seven billion, five hundred forty-two million, eight hundred ninety-seven thousand, four hundred twenty-six".