620473783715 has 4 divisors (see below), whose sum is σ = 744568540464. Its totient is φ = 496379026968.

The previous prime is 620473783691. The next prime is 620473783747. The reversal of 620473783715 is 517387374026.

620473783715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620473783715 - 2³² = 616178816419 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62047378367 + ... + 62047378376.

It is an arithmetic number, because the mean of its divisors is an integer number (186142135116).

Almost surely, 2^620473783715 is an apocalyptic number.

620473783715 is a deficient number, since it is larger than the sum of its proper divisors (124094756749).

620473783715 is a wasteful number, since it uses less digits than its factorization.

620473783715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124094756748.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 620473783715 in words is "six hundred twenty billion, four hundred seventy-three million, seven hundred eighty-three thousand, seven hundred fifteen".