2780143421435 has 8 divisors (see below), whose sum is σ = 3336356096640. Its totient is φ = 2223992076544.

The previous prime is 2780143421359. The next prime is 2780143421509. The reversal of 2780143421435 is 5341243410872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2780143421435 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15232790 + ... + 15414219.

It is an arithmetic number, because the mean of its divisors is an integer number (417044512080).

Almost surely, 2^{2780143421435} is an apocalyptic number.

2780143421435 is a deficient number, since it is larger than the sum of its proper divisors (556212675205).

2780143421435 is a wasteful number, since it uses less digits than its factorization.

2780143421435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30665157.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 2780143421435 in words is "two trillion, seven hundred eighty billion, one hundred forty-three million, four hundred twenty-one thousand, four hundred thirty-five".