1273401446547 has 16 divisors (see below), whose sum is σ = 1779728404608. Its totient is φ = 808967449920.

The previous prime is 1273401446543. The next prime is 1273401446557. The reversal of 1273401446547 is 7456441043721.

It is not a de Polignac number, because 1273401446547 - 2² = 1273401446543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1273401446496 and 1273401446505.

It is not an unprimeable number, because it can be changed into a prime (1273401446543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120376773 + ... + 120387350.

It is an arithmetic number, because the mean of its divisors is an integer number (111233025288).

Almost surely, 2^{1273401446547} is an apocalyptic number.

1273401446547 is a deficient number, since it is larger than the sum of its proper divisors (506326958061).

1273401446547 is a wasteful number, since it uses less digits than its factorization.

1273401446547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240764210.

The product of its (nonzero) digits is 2257920, while the sum is 48.

The spelling of 1273401446547 in words is "one trillion, two hundred seventy-three billion, four hundred one million, four hundred forty-six thousand, five hundred forty-seven".