1361777621204 has 48 divisors (see below), whose sum is σ = 3199701273216. Its totient is φ = 489750192000.

The previous prime is 1361777621189. The next prime is 1361777621219. The reversal of 1361777621204 is 4021267771631.

It is an interprime number because it is at equal distance from previous prime (1361777621189) and next prime (1361777621219).

It is a super-2 number, since 2×1361777621204² (a number of 25 digits) contains 22 as substring.

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, 170048147 + ... + 170056154.

It is an arithmetic number, because the mean of its divisors is an integer number (66660443192).

Almost surely, 2^{1361777621204} is an apocalyptic number.

1361777621204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1361777621204 is an abundant number, since it is smaller than the sum of its proper divisors (1837923652012).

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

1361777621204 is a wasteful number, since it uses less digits than its factorization.

1361777621204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340104336 (or 340104334 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 1361777621204 in words is "one trillion, three hundred sixty-one billion, seven hundred seventy-seven million, six hundred twenty-one thousand, two hundred four".