949121618208 has 96 divisors (see below), whose sum is σ = 2638251435456. Its totient is φ = 297735241728.

The previous prime is 949121618143. The next prime is 949121618243. The reversal of 949121618208 is 802816121949.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×949121618208² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22881135 + ... + 22922577.

It is an arithmetic number, because the mean of its divisors is an integer number (27481785786).

Almost surely, 2^949121618208 is an apocalyptic number.

It is an amenable number.

949121618208 is an abundant number, since it is smaller than the sum of its proper divisors (1689129817248).

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

949121618208 is a wasteful number, since it uses less digits than its factorization.

949121618208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55506 (or 55498 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 949121618208 in words is "nine hundred forty-nine billion, one hundred twenty-one million, six hundred eighteen thousand, two hundred eight".