245371377745 has 16 divisors (see below), whose sum is σ = 317155829760. Its totient is φ = 181162747584.

The previous prime is 245371377743. The next prime is 245371377767. The reversal of 245371377745 is 547773173542.

It is a happy number.

It is not a de Polignac number, because 245371377745 - 2¹ = 245371377743 is a prime.

It is a super-2 number, since 2×245371377745² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245371377743) 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, 14409 + ... + 700678.

It is an arithmetic number, because the mean of its divisors is an integer number (19822239360).

Almost surely, 2^245371377745 is an apocalyptic number.

It is an amenable number.

245371377745 is a deficient number, since it is larger than the sum of its proper divisors (71784452015).

245371377745 is a wasteful number, since it uses less digits than its factorization.

245371377745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720384.

The product of its digits is 17287200, while the sum is 55.

The spelling of 245371377745 in words is "two hundred forty-five billion, three hundred seventy-one million, three hundred seventy-seven thousand, seven hundred forty-five".