245401404212545 has 48 divisors (see below), whose sum is σ = 371557543443408. Its totient is φ = 154513858007040.

The previous prime is 245401404212539. The next prime is 245401404212561. The reversal of 245401404212545 is 545212404104542.

245401404212545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5471744358976 + 239929659853569 = 2339176^2 + 15489663^2 .

It is a de Polignac number, because none of the positive numbers 2^k-245401404212545 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 718364662 + ... + 718706191.

It is an arithmetic number, because the mean of its divisors is an integer number (7740782155071).

Almost surely, 2^{245401404212545} is an apocalyptic number.

It is an amenable number.

245401404212545 is a deficient number, since it is larger than the sum of its proper divisors (126156139230863).

245401404212545 is a wasteful number, since it uses less digits than its factorization.

245401404212545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437070930 (or 1437070923 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 43.

The spelling of 245401404212545 in words is "two hundred forty-five trillion, four hundred one billion, four hundred four million, two hundred twelve thousand, five hundred forty-five".