23649129672240 has 80 divisors (see below), whose sum is σ = 73543571311968. Its totient is φ = 6286540443648.

The previous prime is 23649129672209. The next prime is 23649129672251. The reversal of 23649129672240 is 4227692194632.

It is a tau number, because it is divible by the number of its divisors (80).

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, 155346697 + ... + 155498856.

Almost surely, 2^{23649129672240} is an apocalyptic number.

23649129672240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23649129672240 is an abundant number, since it is smaller than the sum of its proper divisors (49894441639728).

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

23649129672240 is a wasteful number, since it uses less digits than its factorization.

23649129672240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310845886 (or 310845880 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 23649129672240 in words is "twenty-three trillion, six hundred forty-nine billion, one hundred twenty-nine million, six hundred seventy-two thousand, two hundred forty".