1361250637540 has 48 divisors (see below), whose sum is σ = 2866638184704. Its totient is φ = 542976307200.

The previous prime is 1361250637499. The next prime is 1361250637679. The reversal of 1361250637540 is 457360521631.

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, 10331557 + ... + 10462483.

It is an arithmetic number, because the mean of its divisors is an integer number (59721628848).

Almost surely, 2^{1361250637540} is an apocalyptic number.

1361250637540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361250637540 is an abundant number, since it is smaller than the sum of its proper divisors (1505387547164).

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

1361250637540 is a wasteful number, since it uses less digits than its factorization.

1361250637540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132388 (or 132386 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 1361250637540 in words is "one trillion, three hundred sixty-one billion, two hundred fifty million, six hundred thirty-seven thousand, five hundred forty".