7812073478 has 32 divisors (see below), whose sum is σ = 14247757440. Its totient is φ = 3166162560.

The previous prime is 7812073469. The next prime is 7812073513. The reversal of 7812073478 is 8743702187.

It is a super-2 number, since 2×7812073478² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542576 + ... + 556787.

It is an arithmetic number, because the mean of its divisors is an integer number (445242420).

Almost surely, 2^7812073478 is an apocalyptic number.

7812073478 is a deficient number, since it is larger than the sum of its proper divisors (6435683962).

7812073478 is a wasteful number, since it uses less digits than its factorization.

7812073478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099412.

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 7812073478 is about 88385.9348425981. The cubic root of 7812073478 is about 1984.2152043579.

The spelling of 7812073478 in words is "seven billion, eight hundred twelve million, seventy-three thousand, four hundred seventy-eight".