1350779643 has 6 divisors (see below), whose sum is σ = 1951126164. Its totient is φ = 900519756.

The previous prime is 1350779641. The next prime is 1350779653. The reversal of 1350779643 is 3469770531.

1350779643 is a `hidden beast` number, since 13 + 507 + 7 + 96 + 43 = 666.

It is not a de Polignac number, because 1350779643 - 2¹ = 1350779641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1350779641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75043305 + ... + 75043322.

It is an arithmetic number, because the mean of its divisors is an integer number (325187694).

Almost surely, 2^1350779643 is an apocalyptic number.

1350779643 is a deficient number, since it is larger than the sum of its proper divisors (600346521).

1350779643 is a wasteful number, since it uses less digits than its factorization.

1350779643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150086633 (or 150086630 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The square root of 1350779643 is about 36752.9542077912. The cubic root of 1350779643 is about 1105.4221663795.

The spelling of 1350779643 in words is "one billion, three hundred fifty million, seven hundred seventy-nine thousand, six hundred forty-three".