712400340125 has 16 divisors (see below), whose sum is σ = 889632589872. Its totient is φ = 569563243200.

The previous prime is 712400340121. The next prime is 712400340143. The reversal of 712400340125 is 521043004217.

It can be written as a sum of positive squares in 8 ways, for example, as 280474041604 + 431926298521 = 529598^2 + 657211^2 .

It is not a de Polignac number, because 712400340125 - 2² = 712400340121 is a prime.

It is a super-2 number, since 2×712400340125² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712400340121) 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, 1584722 + ... + 1983971.

It is an arithmetic number, because the mean of its divisors is an integer number (55602036867).

Almost surely, 2^712400340125 is an apocalyptic number.

It is an amenable number.

712400340125 is a deficient number, since it is larger than the sum of its proper divisors (177232249747).

712400340125 is a wasteful number, since it uses less digits than its factorization.

712400340125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570305 (or 3570295 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The spelling of 712400340125 in words is "seven hundred twelve billion, four hundred million, three hundred forty thousand, one hundred twenty-five".