7542254643 has 24 divisors (see below), whose sum is σ = 12632761344. Its totient is φ = 3918053040.

The previous prime is 7542254633. The next prime is 7542254717. The reversal of 7542254643 is 3464522457.

It is not a de Polignac number, because 7542254643 - 2¹³ = 7542246451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7542254595 and 7542254604.

It is not an unprimeable number, because it can be changed into a prime (7542254633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1481571 + ... + 1486652.

It is an arithmetic number, because the mean of its divisors is an integer number (526365056).

Almost surely, 2^7542254643 is an apocalyptic number.

7542254643 is a deficient number, since it is larger than the sum of its proper divisors (5090506701).

7542254643 is a wasteful number, since it uses less digits than its factorization.

7542254643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968255 (or 2968244 counting only the distinct ones).

The product of its digits is 806400, while the sum is 42.

The square root of 7542254643 is about 86846.1550271513. The cubic root of 7542254643 is about 1961.1029682432.

The spelling of 7542254643 in words is "seven billion, five hundred forty-two million, two hundred fifty-four thousand, six hundred forty-three".