20400301212634 has 64 divisors (see below), whose sum is σ = 35833680046080. Its totient is φ = 8530835428800.

The previous prime is 20400301212631. The next prime is 20400301212667. The reversal of 20400301212634 is 43621210300402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20400301212631) 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, 30018897 + ... + 30690955.

It is an arithmetic number, because the mean of its divisors is an integer number (559901250720).

Almost surely, 2^{20400301212634} is an apocalyptic number.

20400301212634 is a deficient number, since it is larger than the sum of its proper divisors (15433378833446).

20400301212634 is a wasteful number, since it uses less digits than its factorization.

20400301212634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672475.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 20400301212634 in words is "twenty trillion, four hundred billion, three hundred one million, two hundred twelve thousand, six hundred thirty-four".