245471939460 has 864 divisors, whose sum is σ = 899408240640. Its totient is φ = 53621568000.

The previous prime is 245471939441. The next prime is 245471939507. The reversal of 245471939460 is 64939174542.

245471939460 is a `hidden beast` number, since 2 + 4 + 547 + 1 + 9 + 3 + 94 + 6 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 245471939397 and 245471939406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3107239701 + ... + 3107239779.

It is an arithmetic number, because the mean of its divisors is an integer number (1040981760).

Almost surely, 2^245471939460 is an apocalyptic number.

245471939460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245471939460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449704120320).

245471939460 is an abundant number, since it is smaller than the sum of its proper divisors (653936301180).

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

245471939460 is a wasteful number, since it uses less digits than its factorization.

245471939460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 245471939460 in words is "two hundred forty-five billion, four hundred seventy-one million, nine hundred thirty-nine thousand, four hundred sixty".