29478057781460 has 96 divisors (see below), whose sum is σ = 67231570492800. Its totient is φ = 10819773020160.

The previous prime is 29478057781429. The next prime is 29478057781477. The reversal of 29478057781460 is 6418775087492.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4640297 + ... + 8971536.

It is an arithmetic number, because the mean of its divisors is an integer number (700328859300).

Almost surely, 2^{29478057781460} is an apocalyptic number.

29478057781460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29478057781460 is an abundant number, since it is smaller than the sum of its proper divisors (37753512711340).

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

29478057781460 is a wasteful number, since it uses less digits than its factorization.

29478057781460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13612041 (or 13612039 counting only the distinct ones).

The product of its (nonzero) digits is 189665280, while the sum is 68.

The spelling of 29478057781460 in words is "twenty-nine trillion, four hundred seventy-eight billion, fifty-seven million, seven hundred eighty-one thousand, four hundred sixty".