7545278090 has 32 divisors (see below), whose sum is σ = 15529536000. Its totient is φ = 2585649024.

The previous prime is 7545278089. The next prime is 7545278101. The reversal of 7545278090 is 908725457.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118286 + ... + 170534.

It is an arithmetic number, because the mean of its divisors is an integer number (485298000).

Almost surely, 2^7545278090 is an apocalyptic number.

7545278090 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7545278090 is an abundant number, since it is smaller than the sum of its proper divisors (7984257910).

7545278090 is a wasteful number, since it uses less digits than its factorization.

7545278090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54326.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 7545278090 is about 86863.5601964368. The cubic root of 7545278090 is about 1961.3649809108.

The spelling of 7545278090 in words is "seven billion, five hundred forty-five million, two hundred seventy-eight thousand, ninety".