1276286003616 has 48 divisors (see below), whose sum is σ = 3607962359904. Its totient is φ = 392703385344.

The previous prime is 1276286003579. The next prime is 1276286003639. The reversal of 1276286003616 is 6163006826721.

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

It is a super-2 number, since 2×1276286003616² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511331286 + ... + 511333781.

It is an arithmetic number, because the mean of its divisors is an integer number (75165882498).

Almost surely, 2^{1276286003616} is an apocalyptic number.

1276286003616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1276286003616 is an abundant number, since it is smaller than the sum of its proper divisors (2331676356288).

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

1276286003616 is a wasteful number, since it uses less digits than its factorization.

1276286003616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022665093 (or 1022665085 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 1276286003616 in words is "one trillion, two hundred seventy-six billion, two hundred eighty-six million, three thousand, six hundred sixteen".