612981503745 has 32 divisors (see below), whose sum is σ = 1090285722624. Its totient is φ = 292040812800.

The previous prime is 612981503731. The next prime is 612981503749. The reversal of 612981503745 is 547305189216.

It is not a de Polignac number, because 612981503745 - 2⁶ = 612981503681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612981503749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50695486 + ... + 50707575.

It is an arithmetic number, because the mean of its divisors is an integer number (34071428832).

It is a 1-persistent number, because it is pandigital, but 2⋅612981503745 = 1225963007490 is not.

Almost surely, 2^612981503745 is an apocalyptic number.

612981503745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

612981503745 is a deficient number, since it is larger than the sum of its proper divisors (477304218879).

612981503745 is a wasteful number, since it uses less digits than its factorization.

612981503745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101403113.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 612981503745 in words is "six hundred twelve billion, nine hundred eighty-one million, five hundred three thousand, seven hundred forty-five".