23406635351540 has 48 divisors (see below), whose sum is σ = 56200970593152. Its totient is φ = 8021554156416.

The previous prime is 23406635351479. The next prime is 23406635351563. The reversal of 23406635351540 is 4515353660432.

It is a congruent number.

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, 36955319 + ... + 37583358.

It is an arithmetic number, because the mean of its divisors is an integer number (1170853554024).

Almost surely, 2^{23406635351540} is an apocalyptic number.

23406635351540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23406635351540 is an abundant number, since it is smaller than the sum of its proper divisors (32794335241612).

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

23406635351540 is a wasteful number, since it uses less digits than its factorization.

23406635351540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74540936 (or 74540934 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 23406635351540 in words is "twenty-three trillion, four hundred six billion, six hundred thirty-five million, three hundred fifty-one thousand, five hundred forty".