1791608409402 has 16 divisors (see below), whose sum is σ = 4095104935872. Its totient is φ = 511888116960.

The previous prime is 1791608409401. The next prime is 1791608409433. The reversal of 1791608409402 is 2049048061971.

It is not an unprimeable number, because it can be changed into a prime (1791608409401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21328671499 + ... + 21328671582.

It is an arithmetic number, because the mean of its divisors is an integer number (255944058492).

Almost surely, 2^{1791608409402} is an apocalyptic number.

1791608409402 is an abundant number, since it is smaller than the sum of its proper divisors (2303496526470).

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

1791608409402 is a wasteful number, since it uses less digits than its factorization.

1791608409402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42657343093.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 1791608409402 in words is "one trillion, seven hundred ninety-one billion, six hundred eight million, four hundred nine thousand, four hundred two".