954402543521 has 12 divisors (see below), whose sum is σ = 1110296378880. Its totient is φ = 818005524840.

The previous prime is 954402543509. The next prime is 954402543529. The reversal of 954402543521 is 125345204459.

It is not a de Polignac number, because 954402543521 - 2²² = 954398349217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (954402543529) 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, 121400 + ... + 1386918.

It is an arithmetic number, because the mean of its divisors is an integer number (92524698240).

Almost surely, 2^954402543521 is an apocalyptic number.

It is an amenable number.

954402543521 is a deficient number, since it is larger than the sum of its proper divisors (155893835359).

954402543521 is a wasteful number, since it uses less digits than its factorization.

954402543521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280924 (or 1280917 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 954402543521 in words is "nine hundred fifty-four billion, four hundred two million, five hundred forty-three thousand, five hundred twenty-one".