1270543680 has 672 divisors, whose sum is σ = 5477621760. Its totient is φ = 263761920.

The previous prime is 1270543657. The next prime is 1270543697. The reversal of 1270543680 is 863450721.

1270543680 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×1270543680² = 3228562485575884800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11874187 + ... + 11874293.

Almost surely, 2^1270543680 is an apocalyptic number.

1270543680 is a gapful number since it is divisible by the number (10) 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 1270543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2738810880).

1270543680 is an abundant number, since it is smaller than the sum of its proper divisors (4207078080).

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

1270543680 is a wasteful number, since it uses less digits than its factorization.

1270543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1270543680 is about 35644.6865605521. The cubic root of 1270543680 is about 1083.0866432115.

The spelling of 1270543680 in words is "one billion, two hundred seventy million, five hundred forty-three thousand, six hundred eighty".