1957043783 has 2 divisors, whose sum is σ = 1957043784. Its totient is φ = 1957043782.

The previous prime is 1957043761. The next prime is 1957043813. The reversal of 1957043783 is 3873407591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1957043783 - 2¹⁴ = 1957027399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1957043713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978521891 + 978521892.

It is an arithmetic number, because the mean of its divisors is an integer number (978521892).

Almost surely, 2^1957043783 is an apocalyptic number.

1957043783 is a deficient number, since it is larger than the sum of its proper divisors (1).

1957043783 is an equidigital number, since it uses as much as digits as its factorization.

1957043783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 1957043783 is about 44238.4875758654. The cubic root of 1957043783 is about 1250.8354485362.

The spelling of 1957043783 in words is "one billion, nine hundred fifty-seven million, forty-three thousand, seven hundred eighty-three".