1478478153252 has 12 divisors (see below), whose sum is σ = 3449782357616. Its totient is φ = 492826051080.

The previous prime is 1478478153241. The next prime is 1478478153253. The reversal of 1478478153252 is 2523518748741.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1478478153192 and 1478478153201.

It is not an unprimeable number, because it can be changed into a prime (1478478153253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61603256374 + ... + 61603256397.

Almost surely, 2^{1478478153252} is an apocalyptic number.

1478478153252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1478478153252 is an abundant number, since it is smaller than the sum of its proper divisors (1971304204364).

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

1478478153252 is a wasteful number, since it uses less digits than its factorization.

1478478153252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123206512778 (or 123206512776 counting only the distinct ones).

The product of its digits is 15052800, while the sum is 57.

The spelling of 1478478153252 in words is "one trillion, four hundred seventy-eight billion, four hundred seventy-eight million, one hundred fifty-three thousand, two hundred fifty-two".