1950699987 has 12 divisors (see below), whose sum is σ = 2844012600. Its totient is φ = 1288312128.

The previous prime is 1950699983. The next prime is 1950699997. The reversal of 1950699987 is 7899960591.

It is not a de Polignac number, because 1950699987 - 2² = 1950699983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1950699983) 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, 1011862 + ... + 1013787.

It is an arithmetic number, because the mean of its divisors is an integer number (237001050).

Almost surely, 2^1950699987 is an apocalyptic number.

1950699987 is a deficient number, since it is larger than the sum of its proper divisors (893312613).

1950699987 is a wasteful number, since it uses less digits than its factorization.

1950699987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025762 (or 2025759 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 63.

The square root of 1950699987 is about 44166.7294125340. The cubic root of 1950699987 is about 1249.4824496362.

The spelling of 1950699987 in words is "one billion, nine hundred fifty million, six hundred ninety-nine thousand, nine hundred eighty-seven".