1259476442480 has 20 divisors (see below), whose sum is σ = 2928282728952. Its totient is φ = 503790576960.

The previous prime is 1259476442431. The next prime is 1259476442489. The reversal of 1259476442480 is 842446749521.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1259476442489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7871727686 + ... + 7871727845.

Almost surely, 2^{1259476442480} is an apocalyptic number.

1259476442480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1259476442480 is an abundant number, since it is smaller than the sum of its proper divisors (1668806286472).

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

1259476442480 is a wasteful number, since it uses less digits than its factorization.

1259476442480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15743455544 (or 15743455538 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 1259476442480 in words is "one trillion, two hundred fifty-nine billion, four hundred seventy-six million, four hundred forty-two thousand, four hundred eighty".