620044873787541 has 4 divisors (see below), whose sum is σ = 826726498383392. Its totient is φ = 413363249191692.

The previous prime is 620044873787431. The next prime is 620044873787567. The reversal of 620044873787541 is 145787378440026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 620044873787541 - 2¹⁰ = 620044873786517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620044873787741) 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, 103340812297921 + ... + 103340812297926.

It is an arithmetic number, because the mean of its divisors is an integer number (206681624595848).

Almost surely, 2^{620044873787541} is an apocalyptic number.

It is an amenable number.

620044873787541 is a deficient number, since it is larger than the sum of its proper divisors (206681624595851).

620044873787541 is a wasteful number, since it uses less digits than its factorization.

620044873787541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206681624595850.

The product of its (nonzero) digits is 252887040, while the sum is 66.

The spelling of 620044873787541 in words is "six hundred twenty trillion, forty-four billion, eight hundred seventy-three million, seven hundred eighty-seven thousand, five hundred forty-one".