1197788739952 has 80 divisors (see below), whose sum is σ = 2670320517120. Its totient is φ = 509851109376.

The previous prime is 1197788739949. The next prime is 1197788739977. The reversal of 1197788739952 is 2599378877911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10193728 + ... + 10310560.

It is an arithmetic number, because the mean of its divisors is an integer number (33379006464).

Almost surely, 2^{1197788739952} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197788739952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1335160258560).

1197788739952 is an abundant number, since it is smaller than the sum of its proper divisors (1472531777168).

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

1197788739952 is a wasteful number, since it uses less digits than its factorization.

1197788739952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117470 (or 117464 counting only the distinct ones).

The product of its digits is 480090240, while the sum is 76.

The spelling of 1197788739952 in words is "one trillion, one hundred ninety-seven billion, seven hundred eighty-eight million, seven hundred thirty-nine thousand, nine hundred fifty-two".