3427491527478 has 24 divisors (see below), whose sum is σ = 7499758692816. Its totient is φ = 1131185322000.

The previous prime is 3427491527443. The next prime is 3427491527479. The reversal of 3427491527478 is 8747251947243.

It is a happy number.

3427491527478 is a `hidden beast` number, since 3 + 4 + 2 + 7 + 4 + 9 + 152 + 7 + 478 = 666.

3427491527478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×3427491527478³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3427491527479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 942652618 + ... + 942656253.

It is an arithmetic number, because the mean of its divisors is an integer number (312489945534).

Almost surely, 2^{3427491527478} is an apocalyptic number.

3427491527478 is an abundant number, since it is smaller than the sum of its proper divisors (4072267165338).

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

3427491527478 is a wasteful number, since it uses less digits than its factorization.

3427491527478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885308980 (or 1885308977 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 63.

The spelling of 3427491527478 in words is "three trillion, four hundred twenty-seven billion, four hundred ninety-one million, five hundred twenty-seven thousand, four hundred seventy-eight".