1260278352560 has 40 divisors (see below), whose sum is σ = 2930199865920. Its totient is φ = 504102275072.

The previous prime is 1260278352547. The next prime is 1260278352569. The reversal of 1260278352560 is 652538720621.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1260278352569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5974976 + ... + 6182304.

It is an arithmetic number, because the mean of its divisors is an integer number (73254996648).

Almost surely, 2^{1260278352560} is an apocalyptic number.

1260278352560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260278352560 is an abundant number, since it is smaller than the sum of its proper divisors (1669921513360).

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

1260278352560 is a wasteful number, since it uses less digits than its factorization.

1260278352560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283325 (or 283319 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 1260278352560 in words is "one trillion, two hundred sixty billion, two hundred seventy-eight million, three hundred fifty-two thousand, five hundred sixty".