1209914772240 has 40 divisors (see below), whose sum is σ = 3750735794688. Its totient is φ = 322643939200.

The previous prime is 1209914772233. The next prime is 1209914772263. The reversal of 1209914772240 is 422774199021.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1209914772240.

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, 2520655536 + ... + 2520656015.

Almost surely, 2^{1209914772240} is an apocalyptic number.

1209914772240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1209914772240 is an abundant number, since it is smaller than the sum of its proper divisors (2540821022448).

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

1209914772240 is a wasteful number, since it uses less digits than its factorization.

1209914772240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041311567 (or 5041311561 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 1209914772240 in words is "one trillion, two hundred nine billion, nine hundred fourteen million, seven hundred seventy-two thousand, two hundred forty".