245445464121 has 32 divisors (see below), whose sum is σ = 385710474240. Its totient is φ = 136870555200.

The previous prime is 245445464081. The next prime is 245445464153. The reversal of 245445464121 is 121464544542.

It is a happy number.

It is not a de Polignac number, because 245445464121 - 2¹⁵ = 245445431353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245445464171) 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, 786411 + ... + 1053248.

It is an arithmetic number, because the mean of its divisors is an integer number (12053452320).

Almost surely, 2^245445464121 is an apocalyptic number.

It is an amenable number.

245445464121 is a deficient number, since it is larger than the sum of its proper divisors (140265010119).

245445464121 is a wasteful number, since it uses less digits than its factorization.

245445464121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839997.

The product of its digits is 614400, while the sum is 42.

The spelling of 245445464121 in words is "two hundred forty-five billion, four hundred forty-five million, four hundred sixty-four thousand, one hundred twenty-one".