68462210545 has 16 divisors (see below), whose sum is σ = 83034817488. Its totient is φ = 54183444480.

The previous prime is 68462210543. The next prime is 68462210567. The reversal of 68462210545 is 54501226486.

68462210545 = 185016² + 185017².

It can be written as a sum of positive squares in 8 ways, for example, as 178249201 + 68283961344 = 13351^2 + 261312^2 .

It is not a de Polignac number, because 68462210545 - 2¹ = 68462210543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68462210543) 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, 1244257 + ... + 1298113.

It is an arithmetic number, because the mean of its divisors is an integer number (5189676093).

Almost surely, 2^68462210545 is an apocalyptic number.

68462210545 is the 185017-th centered square number.

It is an amenable number.

68462210545 is a deficient number, since it is larger than the sum of its proper divisors (14572606943).

68462210545 is a wasteful number, since it uses less digits than its factorization.

68462210545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56580.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 68462210545 in words is "sixty-eight billion, four hundred sixty-two million, two hundred ten thousand, five hundred forty-five".