7540244645 has 16 divisors (see below), whose sum is σ = 9147520512. Its totient is φ = 5966390400.

The previous prime is 7540244641. The next prime is 7540244671. The reversal of 7540244645 is 5464420457.

It is a happy number.

It is not a de Polignac number, because 7540244645 - 2² = 7540244641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7540244641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154484 + ... + 197346.

It is an arithmetic number, because the mean of its divisors is an integer number (571720032).

Almost surely, 2^7540244645 is an apocalyptic number.

It is an amenable number.

7540244645 is a deficient number, since it is larger than the sum of its proper divisors (1607275867).

7540244645 is a wasteful number, since it uses less digits than its factorization.

7540244645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43252.

The product of its (nonzero) digits is 537600, while the sum is 41.

The square root of 7540244645 is about 86834.5820799525. The cubic root of 7540244645 is about 1960.9287425665.

The spelling of 7540244645 in words is "seven billion, five hundred forty million, two hundred forty-four thousand, six hundred forty-five".