7547046540 has 96 divisors (see below), whose sum is σ = 23069733120. Its totient is φ = 1828243200.

The previous prime is 7547046499. The next prime is 7547046541. The reversal of 7547046540 is 456407457.

It is a super-2 number, since 2×7547046540² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7547046492 and 7547046501.

It is not an unprimeable number, because it can be changed into a prime (7547046541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1124595 + ... + 1131285.

It is an arithmetic number, because the mean of its divisors is an integer number (240309720).

Almost surely, 2^7547046540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7547046540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11534866560).

7547046540 is an abundant number, since it is smaller than the sum of its proper divisors (15522686580).

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

7547046540 is a wasteful number, since it uses less digits than its factorization.

7547046540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8423 (or 8421 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The square root of 7547046540 is about 86873.7390699859. The cubic root of 7547046540 is about 1961.5182027849.

The spelling of 7547046540 in words is "seven billion, five hundred forty-seven million, forty-six thousand, five hundred forty".