7542420536 has 32 divisors (see below), whose sum is σ = 16198380000. Its totient is φ = 3225255936.

The previous prime is 7542420493. The next prime is 7542420563. The reversal of 7542420536 is 6350242457.

It is a self number, because there is not a number n which added to its sum of digits gives 7542420536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124841 + ... + 175128.

It is an arithmetic number, because the mean of its divisors is an integer number (506199375).

Almost surely, 2^7542420536 is an apocalyptic number.

It is an amenable number.

7542420536 is an abundant number, since it is smaller than the sum of its proper divisors (8655959464).

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

7542420536 is a wasteful number, since it uses less digits than its factorization.

7542420536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300431 (or 300427 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 7542420536 is about 86847.1101188750. The cubic root of 7542420536 is about 1961.1173463872.

The spelling of 7542420536 in words is "seven billion, five hundred forty-two million, four hundred twenty thousand, five hundred thirty-six".