7543720940 has 24 divisors (see below), whose sum is σ = 18104930592. Its totient is φ = 2586418560.

The previous prime is 7543720931. The next prime is 7543720949. The reversal of 7543720940 is 490273457.

It is an interprime number because it is at equal distance from previous prime (7543720931) and next prime (7543720949).

It is not an unprimeable number, because it can be changed into a prime (7543720949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26941721 + ... + 26942000.

It is an arithmetic number, because the mean of its divisors is an integer number (754372108).

Almost surely, 2^7543720940 is an apocalyptic number.

7543720940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7543720940 is an abundant number, since it is smaller than the sum of its proper divisors (10561209652).

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

7543720940 is a wasteful number, since it uses less digits than its factorization.

7543720940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53883737 (or 53883735 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 7543720940 is about 86854.5965392736. The cubic root of 7543720940 is about 1961.2300466483.

The spelling of 7543720940 in words is "seven billion, five hundred forty-three million, seven hundred twenty thousand, nine hundred forty".