1361061862072 has 64 divisors (see below), whose sum is σ = 2819214397440. Its totient is φ = 610883078400.

The previous prime is 1361061862057. The next prime is 1361061862087. The reversal of 1361061862072 is 2702681601631.

It is an interprime number because it is at equal distance from previous prime (1361061862057) and next prime (1361061862087).

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, 2069548 + ... + 2646724.

It is an arithmetic number, because the mean of its divisors is an integer number (44050224960).

Almost surely, 2^{1361061862072} 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 1361061862072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409607198720).

1361061862072 is an abundant number, since it is smaller than the sum of its proper divisors (1458152535368).

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

1361061862072 is a wasteful number, since it uses less digits than its factorization.

1361061862072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577532 (or 577528 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 1361061862072 in words is "one trillion, three hundred sixty-one billion, sixty-one million, eight hundred sixty-two thousand, seventy-two".