9953707157 has 4 divisors (see below), whose sum is σ = 9957657996. Its totient is φ = 9949756320.

The previous prime is 9953707139. The next prime is 9953707187. The reversal of 9953707157 is 7517073599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7517073599 = 7 ⋅1073867657.

It can be written as a sum of positive squares in 2 ways, for example, as 1363012561 + 8590694596 = 36919^2 + 92686^2 .

It is a cyclic number.

It is not a de Polignac number, because 9953707157 - 2¹² = 9953703061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9953707099 and 9953707108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9953707187) 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 in 3 ways as a sum of consecutive naturals, for example, 1971638 + ... + 1976679.

It is an arithmetic number, because the mean of its divisors is an integer number (2489414499).

Almost surely, 2^9953707157 is an apocalyptic number.

It is an amenable number.

9953707157 is a deficient number, since it is larger than the sum of its proper divisors (3950839).

9953707157 is a wasteful number, since it uses less digits than its factorization.

9953707157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950838.

The product of its (nonzero) digits is 2083725, while the sum is 53.

The square root of 9953707157 is about 99768.2672847434. The cubic root of 9953707157 is about 2151.1050498885.

The spelling of 9953707157 in words is "nine billion, nine hundred fifty-three million, seven hundred seven thousand, one hundred fifty-seven".