1951942964 has 6 divisors (see below), whose sum is σ = 3415900194. Its totient is φ = 975971480.

The previous prime is 1951942939. The next prime is 1951942969. The reversal of 1951942964 is 4692491591.

It can be written as a sum of positive squares in only one way, i.e., 1467502864 + 484440100 = 38308^2 + 22010^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1951942969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243992867 + ... + 243992874.

It is an arithmetic number, because the mean of its divisors is an integer number (569316699).

Almost surely, 2^1951942964 is an apocalyptic number.

It is an amenable number.

1951942964 is a deficient number, since it is larger than the sum of its proper divisors (1463957230).

1951942964 is a wasteful number, since it uses less digits than its factorization.

1951942964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487985745 (or 487985743 counting only the distinct ones).

The product of its digits is 699840, while the sum is 50.

The square root of 1951942964 is about 44180.7985894325. The cubic root of 1951942964 is about 1249.7477814321.

The spelling of 1951942964 in words is "one billion, nine hundred fifty-one million, nine hundred forty-two thousand, nine hundred sixty-four".