622611731142 has 24 divisors (see below), whose sum is σ = 1398954755016. Its totient is φ = 207537243552.

The previous prime is 622611731129. The next prime is 622611731173. The reversal of 622611731142 is 241137116226.

622611731142 is a `hidden beast` number, since 6 + 2 + 2 + 611 + 7 + 31 + 1 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 622611731097 and 622611731106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640546563 + ... + 640547534.

It is an arithmetic number, because the mean of its divisors is an integer number (58289781459).

Almost surely, 2^622611731142 is an apocalyptic number.

622611731142 is an abundant number, since it is smaller than the sum of its proper divisors (776343023874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622611731142 is a wasteful number, since it uses less digits than its factorization.

622611731142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281094114 (or 1281094102 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

Adding to 622611731142 its reverse (241137116226), we get a palindrome (863748847368).

The spelling of 622611731142 in words is "six hundred twenty-two billion, six hundred eleven million, seven hundred thirty-one thousand, one hundred forty-two".