1958131950 has 48 divisors (see below), whose sum is σ = 4928672640. Its totient is φ = 514372320.

The previous prime is 1958131949. The next prime is 1958131951. The reversal of 1958131950 is 591318591.

It is an interprime number because it is at equal distance from previous prime (1958131949) and next prime (1958131951).

It is a super-2 number, since 2×1958131950² = 7668561467221605000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958131951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87370 + ... + 107469.

It is an arithmetic number, because the mean of its divisors is an integer number (102680680).

Almost surely, 2^1958131950 is an apocalyptic number.

1958131950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1958131950 is an abundant number, since it is smaller than the sum of its proper divisors (2970540690).

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

1958131950 is a wasteful number, since it uses less digits than its factorization.

1958131950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194921 (or 194916 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 42.

The square root of 1958131950 is about 44250.7847388044. The cubic root of 1958131950 is about 1251.0672378767.

The spelling of 1958131950 in words is "one billion, nine hundred fifty-eight million, one hundred thirty-one thousand, nine hundred fifty".