1478478153251 has 16 divisors (see below), whose sum is σ = 1706065666560. Its totient is φ = 1268021747520.

The previous prime is 1478478153241. The next prime is 1478478153253. The reversal of 1478478153251 is 1523518748741.

It is a de Polignac number, because none of the positive numbers 2^k-1478478153251 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40007471 + ... + 40044408.

It is an arithmetic number, because the mean of its divisors is an integer number (106629104160).

Almost surely, 2^{1478478153251} is an apocalyptic number.

1478478153251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1478478153251 is a deficient number, since it is larger than the sum of its proper divisors (227587513309).

1478478153251 is a wasteful number, since it uses less digits than its factorization.

1478478153251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80051986.

The product of its digits is 7526400, while the sum is 56.

The spelling of 1478478153251 in words is "one trillion, four hundred seventy-eight billion, four hundred seventy-eight million, one hundred fifty-three thousand, two hundred fifty-one".