1617603047442 has 12 divisors (see below), whose sum is σ = 3504806602830. Its totient is φ = 539201015808.

The previous prime is 1617603047399. The next prime is 1617603047453. The reversal of 1617603047442 is 2447403067161.

1617603047442 is a `hidden beast` number, since 1 + 6 + 176 + 0 + 3 + 0 + 474 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1114268136921 + 503334910521 = 1055589^2 + 709461^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44933417967 + ... + 44933418002.

Almost surely, 2^{1617603047442} is an apocalyptic number.

1617603047442 is an abundant number, since it is smaller than the sum of its proper divisors (1887203555388).

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

1617603047442 is a wasteful number, since it uses less digits than its factorization.

1617603047442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89866835977 (or 89866835974 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 1617603047442 in words is "one trillion, six hundred seventeen billion, six hundred three million, forty-seven thousand, four hundred forty-two".