621204601451002 has 16 divisors (see below), whose sum is σ = 934210510014600. Its totient is φ = 309801112160320.

The previous prime is 621204601450969. The next prime is 621204601451017. The reversal of 621204601451002 is 200154106402126.

It can be written as a sum of positive squares in 4 ways, for example, as 491035418543761 + 130169182907241 = 22159319^2 + 11409171^2 .

It is a super-2 number, since 2×621204601451002² (a number of 30 digits) contains 22 as substring.

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, 86474352 + ... + 93382132.

Almost surely, 2^{621204601451002} is an apocalyptic number.

621204601451002 is a deficient number, since it is larger than the sum of its proper divisors (313005908563598).

621204601451002 is a wasteful number, since it uses less digits than its factorization.

621204601451002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7023761.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 621204601451002 its reverse (200154106402126), we get a palindrome (821358707853128).

The spelling of 621204601451002 in words is "six hundred twenty-one trillion, two hundred four billion, six hundred one million, four hundred fifty-one thousand, two".