1781048454308 has 72 divisors (see below), whose sum is σ = 3367316477952. Its totient is φ = 823783903488.

The previous prime is 1781048454271. The next prime is 1781048454343. The reversal of 1781048454308 is 8034548401871.

It is a self number, because there is not a number n which added to its sum of digits gives 1781048454308.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29356541 + ... + 29417147.

It is an arithmetic number, because the mean of its divisors is an integer number (46768284416).

Almost surely, 2^{1781048454308} is an apocalyptic number.

It is an amenable number.

1781048454308 is a deficient number, since it is larger than the sum of its proper divisors (1586268023644).

1781048454308 is a wasteful number, since it uses less digits than its factorization.

1781048454308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61129 (or 61108 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 1781048454308 in words is "one trillion, seven hundred eighty-one billion, forty-eight million, four hundred fifty-four thousand, three hundred eight".