245432776420 has 48 divisors (see below), whose sum is σ = 555648590448. Its totient is φ = 90524528640.

The previous prime is 245432776409. The next prime is 245432776427. The reversal of 245432776420 is 24677234542.

It can be written as a sum of positive squares in 8 ways, for example, as 64610522596 + 180822253824 = 254186^2 + 425232^2 .

It is not an unprimeable number, because it can be changed into a prime (245432776427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260101 + ... + 747340.

It is an arithmetic number, because the mean of its divisors is an integer number (11576012301).

Almost surely, 2^245432776420 is an apocalyptic number.

245432776420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245432776420 is an abundant number, since it is smaller than the sum of its proper divisors (310215814028).

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

245432776420 is a wasteful number, since it uses less digits than its factorization.

245432776420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008400 (or 1008398 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 46.

The spelling of 245432776420 in words is "two hundred forty-five billion, four hundred thirty-two million, seven hundred seventy-six thousand, four hundred twenty".