5507781620741 has 4 divisors (see below), whose sum is σ = 5507804865132. Its totient is φ = 5507758376352.

The previous prime is 5507781620701. The next prime is 5507781620749. The reversal of 5507781620741 is 1470261877055.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4415503716100 + 1092277904641 = 2101310^2 + 1045121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5507781620741 is a prime.

It is a super-2 number, since 2×5507781620741² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5507781620749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11263070 + ... + 11741903.

It is an arithmetic number, because the mean of its divisors is an integer number (1376951216283).

Almost surely, 2^{5507781620741} is an apocalyptic number.

It is an amenable number.

5507781620741 is a deficient number, since it is larger than the sum of its proper divisors (23244391).

5507781620741 is a wasteful number, since it uses less digits than its factorization.

5507781620741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23244390.

The product of its (nonzero) digits is 3292800, while the sum is 53.

The spelling of 5507781620741 in words is "five trillion, five hundred seven billion, seven hundred eighty-one million, six hundred twenty thousand, seven hundred forty-one".