1478012355791 has 8 divisors (see below), whose sum is σ = 1555888089600. Its totient is φ = 1400145183000.

The previous prime is 1478012355761. The next prime is 1478012355803. The reversal of 1478012355791 is 1975532108741.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1478012355791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478012355731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1784351 + ... + 2477888.

It is an arithmetic number, because the mean of its divisors is an integer number (194486011200).

Almost surely, 2^{1478012355791} is an apocalyptic number.

1478012355791 is a deficient number, since it is larger than the sum of its proper divisors (77875733809).

1478012355791 is a wasteful number, since it uses less digits than its factorization.

1478012355791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280509.

The product of its (nonzero) digits is 2116800, while the sum is 53.

The spelling of 1478012355791 in words is "one trillion, four hundred seventy-eight billion, twelve million, three hundred fifty-five thousand, seven hundred ninety-one".