620601776251 has 4 divisors (see below), whose sum is σ = 620603822104. Its totient is φ = 620599730400.

The previous prime is 620601776227. The next prime is 620601776303. The reversal of 620601776251 is 152677106026.

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 620601776251 - 2¹¹ = 620601774203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620601776198 and 620601776207.

It is not an unprimeable number, because it can be changed into a prime (620601776051) 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, 467310 + ... + 1208131.

It is an arithmetic number, because the mean of its divisors is an integer number (155150955526).

Almost surely, 2^620601776251 is an apocalyptic number.

620601776251 is a deficient number, since it is larger than the sum of its proper divisors (2045853).

620601776251 is a wasteful number, since it uses less digits than its factorization.

620601776251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045852.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 620601776251 in words is "six hundred twenty billion, six hundred one million, seven hundred seventy-six thousand, two hundred fifty-one".