1270961064400 has 120 divisors (see below), whose sum is σ = 3325028479200. Its totient is φ = 465019430400.

The previous prime is 1270961064361. The next prime is 1270961064407. The reversal of 1270961064400 is 44601690721.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270961064407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2662906 + ... + 3103705.

It is an arithmetic number, because the mean of its divisors is an integer number (27708570660).

Almost surely, 2^{1270961064400} is an apocalyptic number.

1270961064400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270961064400 is an abundant number, since it is smaller than the sum of its proper divisors (2054067414800).

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

1270961064400 is a wasteful number, since it uses less digits than its factorization.

1270961064400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766677 (or 5766666 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 1270961064400 in words is "one trillion, two hundred seventy billion, nine hundred sixty-one million, sixty-four thousand, four hundred".