951506805140 has 24 divisors (see below), whose sum is σ = 1999012147272. Its totient is φ = 380441225600.

The previous prime is 951506805133. The next prime is 951506805187. The reversal of 951506805140 is 41508605159.

It can be written as a sum of positive squares in 4 ways, for example, as 35971674244 + 915535130896 = 189662^2 + 956836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 951506805091 and 951506805100.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10045211 + ... + 10139490.

It is an arithmetic number, because the mean of its divisors is an integer number (83292172803).

Almost surely, 2^951506805140 is an apocalyptic number.

It is an amenable number.

951506805140 is an abundant number, since it is smaller than the sum of its proper divisors (1047505342132).

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

951506805140 is a wasteful number, since it uses less digits than its factorization.

951506805140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187067 (or 20187065 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 44.

The spelling of 951506805140 in words is "nine hundred fifty-one billion, five hundred six million, eight hundred five thousand, one hundred forty".