1975769136 has 60 divisors (see below), whose sum is σ = 6032087880. Its totient is φ = 598717440.

The previous prime is 1975769111. The next prime is 1975769137. The reversal of 1975769136 is 6319675791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1975769137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622081 + ... + 625248.

It is an arithmetic number, because the mean of its divisors is an integer number (100534798).

Almost surely, 2^1975769136 is an apocalyptic number.

1975769136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1975769136 is an abundant number, since it is smaller than the sum of its proper divisors (4056318744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1975769136 is a wasteful number, since it uses less digits than its factorization.

1975769136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247354 (or 1247345 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The square root of 1975769136 is about 44449.6247003279. The cubic root of 1975769136 is about 1254.8121994293.

The spelling of 1975769136 in words is "one billion, nine hundred seventy-five million, seven hundred sixty-nine thousand, one hundred thirty-six".