7149223904478 has 8 divisors (see below), whose sum is σ = 14298447808968. Its totient is φ = 2383074634824.

The previous prime is 7149223904461. The next prime is 7149223904491. The reversal of 7149223904478 is 8744093229417.

It is a sphenic number, since it is the product of 3 distinct primes.

7149223904478 is an admirable number.

It is a super-2 number, since 2×7149223904478² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 595768658701 + ... + 595768658712.

It is an arithmetic number, because the mean of its divisors is an integer number (1787305976121).

Almost surely, 2^{7149223904478} is an apocalyptic number.

7149223904478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7149223904478 is a wasteful number, since it uses less digits than its factorization.

7149223904478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191537317418.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 7149223904478 in words is "seven trillion, one hundred forty-nine billion, two hundred twenty-three million, nine hundred four thousand, four hundred seventy-eight".