1952238642621 has 8 divisors (see below), whose sum is σ = 2756101613184. Its totient is φ = 1224934050240.

The previous prime is 1952238642593. The next prime is 1952238642637. The reversal of 1952238642621 is 1262468322591.

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

It is not a de Polignac number, because 1952238642621 - 2¹⁹ = 1952238118333 is a prime.

It is a super-2 number, since 2×1952238642621² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 38279189071 = 1952238642621 / (1 + 9 + 5 + 2 + 2 + 3 + 8 + 6 + 4 + 2 + 6 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1952238642661) 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, 19139594485 + ... + 19139594586.

It is an arithmetic number, because the mean of its divisors is an integer number (344512701648).

Almost surely, 2^{1952238642621} is an apocalyptic number.

It is an amenable number.

1952238642621 is a deficient number, since it is larger than the sum of its proper divisors (803862970563).

1952238642621 is a wasteful number, since it uses less digits than its factorization.

1952238642621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38279189091.

The product of its digits is 2488320, while the sum is 51.

The spelling of 1952238642621 in words is "one trillion, nine hundred fifty-two billion, two hundred thirty-eight million, six hundred forty-two thousand, six hundred twenty-one".