620546011679 has 4 divisors (see below), whose sum is σ = 676959285480. Its totient is φ = 564132737880.

The previous prime is 620546011661. The next prime is 620546011691. The reversal of 620546011679 is 976110645026.

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

It is a cyclic number.

It is not a de Polignac number, because 620546011679 - 2²⁸ = 620277576223 is a prime.

It is a super-2 number, since 2×620546011679² (a number of 24 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 (620546091679) 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, 28206636884 + ... + 28206636905.

It is an arithmetic number, because the mean of its divisors is an integer number (169239821370).

Almost surely, 2^620546011679 is an apocalyptic number.

620546011679 is a deficient number, since it is larger than the sum of its proper divisors (56413273801).

620546011679 is a wasteful number, since it uses less digits than its factorization.

620546011679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56413273800.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 620546011679 in words is "six hundred twenty billion, five hundred forty-six million, eleven thousand, six hundred seventy-nine".