1361400500506 has 4 divisors (see below), whose sum is σ = 2042100750762. Its totient is φ = 680700250252.

The previous prime is 1361400500503. The next prime is 1361400500513. The reversal of 1361400500506 is 6050050041631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1281118378225 + 80282122281 = 1131865^2 + 283341^2 .

It is a super-2 number, since 2×1361400500506² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1361400500501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340350125125 + ... + 340350125128.

Almost surely, 2^{1361400500506} is an apocalyptic number.

1361400500506 is a deficient number, since it is larger than the sum of its proper divisors (680700250256).

1361400500506 is an equidigital number, since it uses as much as digits as its factorization.

1361400500506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680700250255.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 1361400500506 in words is "one trillion, three hundred sixty-one billion, four hundred million, five hundred thousand, five hundred six".