7381477906 has 32 divisors (see below), whose sum is σ = 12745641600. Its totient is φ = 3173258880.

The previous prime is 7381477897. The next prime is 7381477919. The reversal of 7381477906 is 6097741837.

It is a super-2 number, since 2×7381477906² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36921 + ... + 126988.

It is an arithmetic number, because the mean of its divisors is an integer number (398301300).

Almost surely, 2^7381477906 is an apocalyptic number.

7381477906 is a deficient number, since it is larger than the sum of its proper divisors (5364163694).

7381477906 is a wasteful number, since it uses less digits than its factorization.

7381477906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164034.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The square root of 7381477906 is about 85915.5277350957. The cubic root of 7381477906 is about 1947.0679499662.

The spelling of 7381477906 in words is "seven billion, three hundred eighty-one million, four hundred seventy-seven thousand, nine hundred six".