7381256670 has 48 divisors (see below), whose sum is σ = 19477720080. Its totient is φ = 1938955392.

The previous prime is 7381256653. The next prime is 7381256671. The reversal of 7381256670 is 766521837.

7381256670 is a `hidden beast` number, since 7 + 3 + 8 + 12 + 566 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381256671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 606015 + ... + 618074.

It is an arithmetic number, because the mean of its divisors is an integer number (405785835).

Almost surely, 2^7381256670 is an apocalyptic number.

7381256670 is an abundant number, since it is smaller than the sum of its proper divisors (12096463410).

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

7381256670 is a wasteful number, since it uses less digits than its factorization.

7381256670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224169 (or 1224166 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 7381256670 is about 85914.2402049858. The cubic root of 7381256670 is about 1947.0484974106.

The spelling of 7381256670 in words is "seven billion, three hundred eighty-one million, two hundred fifty-six thousand, six hundred seventy".