47453269978 has 12 divisors (see below), whose sum is σ = 71663301450. Its totient is φ = 23565528216.

The previous prime is 47453269967. The next prime is 47453270027. The reversal of 47453269978 is 87996235474.

It can be written as a sum of positive squares in only one way, i.e., 46020117529 + 1433152449 = 214523^2 + 37857^2 .

It is a super-2 number, since 2×47453269978² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3754153 + ... + 3766771.

Almost surely, 2^47453269978 is an apocalyptic number.

47453269978 is a deficient number, since it is larger than the sum of its proper divisors (24210031472).

47453269978 is an frugal number, since it uses more digits than its factorization.

47453269978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25389 (or 12770 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 64.

It can be divided in two parts, 4745 and 3269978, that added together give a palindrome (3274723).

The spelling of 47453269978 in words is "forty-seven billion, four hundred fifty-three million, two hundred sixty-nine thousand, nine hundred seventy-eight".