7881345452 has 12 divisors (see below), whose sum is σ = 14603669640. Its totient is φ = 3708868416.

The previous prime is 7881345421. The next prime is 7881345467. The reversal of 7881345452 is 2545431887.

It is a super-2 number, since 2×7881345452² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7881345397 and 7881345406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57951002 + ... + 57951137.

It is an arithmetic number, because the mean of its divisors is an integer number (1216972470).

Almost surely, 2^7881345452 is an apocalyptic number.

It is an amenable number.

7881345452 is a deficient number, since it is larger than the sum of its proper divisors (6722324188).

7881345452 is a wasteful number, since it uses less digits than its factorization.

7881345452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115902160 (or 115902158 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 47.

The square root of 7881345452 is about 88776.9421189984. The cubic root of 7881345452 is about 1990.0628290896.

The spelling of 7881345452 in words is "seven billion, eight hundred eighty-one million, three hundred forty-five thousand, four hundred fifty-two".