1264720795104 has 48 divisors (see below), whose sum is σ = 3575268405072. Its totient is φ = 389144859648.

The previous prime is 1264720795099. The next prime is 1264720795109. The reversal of 1264720795104 is 4015970274621.

It is an interprime number because it is at equal distance from previous prime (1264720795099) and next prime (1264720795109).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264720795109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506697789 + ... + 506700284.

It is an arithmetic number, because the mean of its divisors is an integer number (74484758439).

Almost surely, 2^{1264720795104} is an apocalyptic number.

It is an amenable number.

1264720795104 is an abundant number, since it is smaller than the sum of its proper divisors (2310547609968).

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

1264720795104 is a wasteful number, since it uses less digits than its factorization.

1264720795104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013398099 (or 1013398091 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 1264720795104 in words is "one trillion, two hundred sixty-four billion, seven hundred twenty million, seven hundred ninety-five thousand, one hundred four".