1273936232448 has 720 divisors, whose sum is σ = 4385388483840. Its totient is φ = 365484441600.

The previous prime is 1273936232399. The next prime is 1273936232453. The reversal of 1273936232448 is 8442326393721.

It is a happy number.

1273936232448 is a `hidden beast` number, since 1 + 2 + 7 + 3 + 9 + 3 + 623 + 2 + 4 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1273936232394 and 1273936232403.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 832093443 + ... + 832094973.

Almost surely, 2^{1273936232448} is an apocalyptic number.

1273936232448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1273936232448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2192694241920).

1273936232448 is an abundant number, since it is smaller than the sum of its proper divisors (3111452251392).

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

1273936232448 is an equidigital number, since it uses as much as digits as its factorization.

1273936232448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604 (or 1566 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 1273936232448 in words is "one trillion, two hundred seventy-three billion, nine hundred thirty-six million, two hundred thirty-two thousand, four hundred forty-eight".