617122420004 has 6 divisors (see below), whose sum is σ = 1079964235014. Its totient is φ = 308561210000.

The previous prime is 617122419971. The next prime is 617122420027. The reversal of 617122420004 is 400024221716.

It can be written as a sum of positive squares in only one way, i.e., 354822748900 + 262299671104 = 595670^2 + 512152^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77140302497 + ... + 77140302504.

It is an arithmetic number, because the mean of its divisors is an integer number (179994039169).

Almost surely, 2^617122420004 is an apocalyptic number.

It is an amenable number.

617122420004 is a deficient number, since it is larger than the sum of its proper divisors (462841815010).

617122420004 is a wasteful number, since it uses less digits than its factorization.

617122420004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154280605005 (or 154280605003 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 617122420004 in words is "six hundred seventeen billion, one hundred twenty-two million, four hundred twenty thousand, four".