612981739002 has 64 divisors (see below), whose sum is σ = 1265187426048. Its totient is φ = 197868096000.

The previous prime is 612981738937. The next prime is 612981739009. The reversal of 612981739002 is 200937189216.

It is a super-2 number, since 2×612981739002² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612981739009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24075843 + ... + 24101289.

It is an arithmetic number, because the mean of its divisors is an integer number (19768553532).

Almost surely, 2^612981739002 is an apocalyptic number.

612981739002 is an abundant number, since it is smaller than the sum of its proper divisors (652205687046).

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

612981739002 is a wasteful number, since it uses less digits than its factorization.

612981739002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26215.

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 612981739002 in words is "six hundred twelve billion, nine hundred eighty-one million, seven hundred thirty-nine thousand, two".