62421623099981 has 8 divisors (see below), whose sum is σ = 64314037009464. Its totient is φ = 60557244952320.

The previous prime is 62421623099879. The next prime is 62421623099987. The reversal of 62421623099981 is 18999032612426.

It can be written as a sum of positive squares in 4 ways, for example, as 3278601897481 + 59143021202500 = 1810691^2 + 7690450^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 62421623099981 - 2¹⁸ = 62421622837837 is a prime.

It is a super-2 number, since 2×62421623099981² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62421623099987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7008935936 + ... + 7008944841.

It is an arithmetic number, because the mean of its divisors is an integer number (8039254626183).

Almost surely, 2^{62421623099981} is an apocalyptic number.

62421623099981 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

62421623099981 is a deficient number, since it is larger than the sum of its proper divisors (1892413909483).

62421623099981 is a wasteful number, since it uses less digits than its factorization.

62421623099981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14017880911.

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 62421623099981 in words is "sixty-two trillion, four hundred twenty-one billion, six hundred twenty-three million, ninety-nine thousand, nine hundred eighty-one".