1953769879 has 2 divisors, whose sum is σ = 1953769880. Its totient is φ = 1953769878.

The previous prime is 1953769877. The next prime is 1953769921. The reversal of 1953769879 is 9789673591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1953769879 - 2¹ = 1953769877 is a prime.

Together with 1953769877, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1953769879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1953769877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976884939 + 976884940.

It is an arithmetic number, because the mean of its divisors is an integer number (976884940).

Almost surely, 2^1953769879 is an apocalyptic number.

1953769879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1953769879 is an equidigital number, since it uses as much as digits as its factorization.

1953769879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25719120, while the sum is 64.

The square root of 1953769879 is about 44201.4691950392. The cubic root of 1953769879 is about 1250.1375590481.

The spelling of 1953769879 in words is "one billion, nine hundred fifty-three million, seven hundred sixty-nine thousand, eight hundred seventy-nine".