1361777575452 has 48 divisors (see below), whose sum is σ = 3631540335360. Its totient is φ = 389065007232.

The previous prime is 1361777575447. The next prime is 1361777575481. The reversal of 1361777575452 is 2545757771631.

It is a happy number.

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, 2117008 + ... + 2684264.

It is an arithmetic number, because the mean of its divisors is an integer number (75657090320).

Almost surely, 2^{1361777575452} is an apocalyptic number.

1361777575452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1361777575452 is an abundant number, since it is smaller than the sum of its proper divisors (2269762759908).

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

1361777575452 is a wasteful number, since it uses less digits than its factorization.

1361777575452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595850 (or 595848 counting only the distinct ones).

The product of its digits is 43218000, while the sum is 60.

The spelling of 1361777575452 in words is "one trillion, three hundred sixty-one billion, seven hundred seventy-seven million, five hundred seventy-five thousand, four hundred fifty-two".