99953477247 has 32 divisors (see below), whose sum is σ = 149900405760. Its totient is φ = 58832991360.

The previous prime is 99953477209. The next prime is 99953477291. The reversal of 99953477247 is 74277435999.

It is a de Polignac number, because none of the positive numbers 2^k-99953477247 is a prime.

It is a super-2 number, since 2×99953477247² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99953477147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 501879 + ... + 672152.

It is an arithmetic number, because the mean of its divisors is an integer number (4684387680).

Almost surely, 2^99953477247 is an apocalyptic number.

99953477247 is a deficient number, since it is larger than the sum of its proper divisors (49946928513).

99953477247 is a wasteful number, since it uses less digits than its factorization.

99953477247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174143.

The product of its digits is 120022560, while the sum is 66.

The spelling of 99953477247 in words is "ninety-nine billion, nine hundred fifty-three million, four hundred seventy-seven thousand, two hundred forty-seven".