1211702711464 has 128 divisors (see below), whose sum is σ = 2635822080000. Its totient is φ = 511511003136.

The previous prime is 1211702711441. The next prime is 1211702711477. The reversal of 1211702711464 is 4641172071121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 731262124 + ... + 731263780.

It is an arithmetic number, because the mean of its divisors is an integer number (20592360000).

Almost surely, 2^{1211702711464} is an apocalyptic number.

1211702711464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1211702711464 is an abundant number, since it is smaller than the sum of its proper divisors (1424119368536).

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

1211702711464 is a wasteful number, since it uses less digits than its factorization.

1211702711464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475 (or 2471 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

Adding to 1211702711464 its reverse (4641172071121), we get a palindrome (5852874782585).

The spelling of 1211702711464 in words is "one trillion, two hundred eleven billion, seven hundred two million, seven hundred eleven thousand, four hundred sixty-four".