45398359628778 has 16 divisors (see below), whose sum is σ = 97781082277536. Its totient is φ = 13968726039600.

The previous prime is 45398359628759. The next prime is 45398359628821. The reversal of 45398359628778 is 87782695389354.

It is a super-2 number, since 2×45398359628778² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45398359628778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291015125748 + ... + 291015125903.

It is an arithmetic number, because the mean of its divisors is an integer number (6111317642346).

Almost surely, 2^{45398359628778} is an apocalyptic number.

45398359628778 is an abundant number, since it is smaller than the sum of its proper divisors (52382722648758).

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

45398359628778 is a wasteful number, since it uses less digits than its factorization.

45398359628778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582030251669.

The product of its digits is 21946982400, while the sum is 84.

The spelling of 45398359628778 in words is "forty-five trillion, three hundred ninety-eight billion, three hundred fifty-nine million, six hundred twenty-eight thousand, seven hundred seventy-eight".