7212473478 has 48 divisors (see below), whose sum is σ = 18475310880. Its totient is φ = 1989646848.

The previous prime is 7212473459. The next prime is 7212473479. The reversal of 7212473478 is 8743742127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212473479) 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, 983275 + ... + 990582.

It is an arithmetic number, because the mean of its divisors is an integer number (384902310).

Almost surely, 2^7212473478 is an apocalyptic number.

7212473478 is an abundant number, since it is smaller than the sum of its proper divisors (11262837402).

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

7212473478 is a wasteful number, since it uses less digits than its factorization.

7212473478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973901 (or 1973898 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 7212473478 is about 84926.2826102732. The cubic root of 7212473478 is about 1932.0932194646.

It can be divided in two parts, 7212 and 473478, that added together give a triangular number (480690 = T₉₈₀).

The spelling of 7212473478 in words is "seven billion, two hundred twelve million, four hundred seventy-three thousand, four hundred seventy-eight".