7485403872 has 48 divisors (see below), whose sum is σ = 19839980160. Its totient is φ = 2470906752.

The previous prime is 7485403853. The next prime is 7485403873. The reversal of 7485403872 is 2783045847.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×7485403872² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7485403873) 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, 368622 + ... + 388397.

It is an arithmetic number, because the mean of its divisors is an integer number (413332920).

Almost surely, 2^7485403872 is an apocalyptic number.

It is an amenable number.

7485403872 is an abundant number, since it is smaller than the sum of its proper divisors (12354576288).

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

7485403872 is a wasteful number, since it uses less digits than its factorization.

7485403872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757135 (or 757127 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The square root of 7485403872 is about 86518.2285532939. The cubic root of 7485403872 is about 1956.1631757346.

The spelling of 7485403872 in words is "seven billion, four hundred eighty-five million, four hundred three thousand, eight hundred seventy-two".