1273275283896 has 1024 divisors, whose sum is σ = 4702924800000. Its totient is φ = 309450240000.

The previous prime is 1273275283817. The next prime is 1273275283927. The reversal of 1273275283896 is 6983825723721.

1273275283896 is a `hidden beast` number, since 1 + 2 + 7 + 3 + 27 + 528 + 3 + 89 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 5072809771 + ... + 5072810021.

It is an arithmetic number, because the mean of its divisors is an integer number (4592700000).

Almost surely, 2^{1273275283896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1273275283896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2351462400000).

1273275283896 is an abundant number, since it is smaller than the sum of its proper divisors (3429649516104).

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

1273275283896 is a wasteful number, since it uses less digits than its factorization.

1273275283896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 535 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 1273275283896 in words is "one trillion, two hundred seventy-three billion, two hundred seventy-five million, two hundred eighty-three thousand, eight hundred ninety-six".