7543940506 has 8 divisors (see below), whose sum is σ = 11317940064. Its totient is φ = 3771293820.

The previous prime is 7543940479. The next prime is 7543940507. The reversal of 7543940506 is 6050493457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7543940506² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7543940507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324160 + ... + 346651.

It is an arithmetic number, because the mean of its divisors is an integer number (1414742508).

Almost surely, 2^7543940506 is an apocalyptic number.

7543940506 is a deficient number, since it is larger than the sum of its proper divisors (3773999558).

7543940506 is a wasteful number, since it uses less digits than its factorization.

7543940506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676436.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 7543940506 is about 86855.8605161448. The cubic root of 7543940506 is about 1961.2490741840.

The spelling of 7543940506 in words is "seven billion, five hundred forty-three million, nine hundred forty thousand, five hundred six".