1269501966940 has 24 divisors (see below), whose sum is σ = 2668038589440. Its totient is φ = 507403747008.

The previous prime is 1269501966883. The next prime is 1269501966977. The reversal of 1269501966940 is 496691059621.

It is a super-2 number, since 2×1269501966940² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 24788767 + ... + 24839926.

It is an arithmetic number, because the mean of its divisors is an integer number (111168274560).

Almost surely, 2^{1269501966940} is an apocalyptic number.

1269501966940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1269501966940 is an abundant number, since it is smaller than the sum of its proper divisors (1398536622500).

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

1269501966940 is a wasteful number, since it uses less digits than its factorization.

1269501966940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49629981 (or 49629979 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 58.

The spelling of 1269501966940 in words is "one trillion, two hundred sixty-nine billion, five hundred one million, nine hundred sixty-six thousand, nine hundred forty".