1361504019420 has 36 divisors (see below), whose sum is σ = 4129895526120. Its totient is φ = 363067738464.

The previous prime is 1361504019401. The next prime is 1361504019431. The reversal of 1361504019420 is 249104051631.

It is a happy number.

1361504019420 is a `hidden beast` number, since 1 + 3 + 61 + 504 + 0 + 1 + 94 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3781955430 + ... + 3781955789.

It is an arithmetic number, because the mean of its divisors is an integer number (114719320170).

Almost surely, 2^{1361504019420} is an apocalyptic number.

1361504019420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361504019420 is an abundant number, since it is smaller than the sum of its proper divisors (2768391506700).

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

1361504019420 is a wasteful number, since it uses less digits than its factorization.

1361504019420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7563911234 (or 7563911229 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 1361504019420 in words is "one trillion, three hundred sixty-one billion, five hundred four million, nineteen thousand, four hundred twenty".