1361250077730 has 64 divisors (see below), whose sum is σ = 3372565966848. Its totient is φ = 351271730880.

The previous prime is 1361250077653. The next prime is 1361250077731. The reversal of 1361250077730 is 377700521631.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1361250077731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30171769 + ... + 30216851.

It is an arithmetic number, because the mean of its divisors is an integer number (52696343232).

Almost surely, 2^{1361250077730} is an apocalyptic number.

1361250077730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1361250077730 is an abundant number, since it is smaller than the sum of its proper divisors (2011315889118).

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

1361250077730 is a wasteful number, since it uses less digits than its factorization.

1361250077730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77591.

The product of its (nonzero) digits is 185220, while the sum is 42.

The spelling of 1361250077730 in words is "one trillion, three hundred sixty-one billion, two hundred fifty million, seventy-seven thousand, seven hundred thirty".