621214653002 has 4 divisors (see below), whose sum is σ = 931821979506. Its totient is φ = 310607326500.

The previous prime is 621214652939. The next prime is 621214653013. The reversal of 621214653002 is 200356412126.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 620611508521 + 603144481 = 787789^2 + 24559^2 .

It is a super-2 number, since 2×621214653002² (a number of 24 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 621214653002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155303663249 + ... + 155303663252.

Almost surely, 2^621214653002 is an apocalyptic number.

621214653002 is a deficient number, since it is larger than the sum of its proper divisors (310607326504).

621214653002 is a wasteful number, since it uses less digits than its factorization.

621214653002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310607326503.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 621214653002 in words is "six hundred twenty-one billion, two hundred fourteen million, six hundred fifty-three thousand, two".