620745740942 has 8 divisors (see below), whose sum is σ = 931122266976. Its totient is φ = 310371651952.

The previous prime is 620745740917. The next prime is 620745740947. The reversal of 620745740942 is 249047547026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620745740947) 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, 297323 + ... + 1153209.

It is an arithmetic number, because the mean of its divisors is an integer number (116390283372).

Almost surely, 2^620745740942 is an apocalyptic number.

620745740942 is a deficient number, since it is larger than the sum of its proper divisors (310376526034).

620745740942 is a wasteful number, since it uses less digits than its factorization.

620745740942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218522.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 620745740942 in words is "six hundred twenty billion, seven hundred forty-five million, seven hundred forty thousand, nine hundred forty-two".