7542172036 has 12 divisors (see below), whose sum is σ = 15084344128. Its totient is φ = 3232359432.

The previous prime is 7542171997. The next prime is 7542172039. The reversal of 7542172036 is 6302712457.

It is a happy number.

7542172036 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7542171986 and 7542172004.

It is not an unprimeable number, because it can be changed into a prime (7542172039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134681616 + ... + 134681671.

Almost surely, 2^7542172036 is an apocalyptic number.

It is an amenable number.

7542172036 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7542172036 is a wasteful number, since it uses less digits than its factorization.

7542172036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269363298 (or 269363296 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 7542172036 is about 86845.6794319671. The cubic root of 7542172036 is about 1961.0958085174.

The spelling of 7542172036 in words is "seven billion, five hundred forty-two million, one hundred seventy-two thousand, thirty-six".