1260897549646 has 24 divisors (see below), whose sum is σ = 2200411203696. Its totient is φ = 540317453760.

The previous prime is 1260897549641. The next prime is 1260897549697. The reversal of 1260897549646 is 6469457980621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260897549641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4146 + ... + 1588021.

It is an arithmetic number, because the mean of its divisors is an integer number (91683800154).

Almost surely, 2^{1260897549646} is an apocalyptic number.

1260897549646 is a deficient number, since it is larger than the sum of its proper divisors (939513654050).

1260897549646 is a wasteful number, since it uses less digits than its factorization.

1260897549646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600264 (or 1600257 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 67.

The spelling of 1260897549646 in words is "one trillion, two hundred sixty billion, eight hundred ninety-seven million, five hundred forty-nine thousand, six hundred forty-six".