1052861721451 has 2 divisors, whose sum is σ = 1052861721452. Its totient is φ = 1052861721450.

The previous prime is 1052861721407. The next prime is 1052861721467. The reversal of 1052861721451 is 1541271682501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1052861721451 - 2¹³ = 1052861713259 is a prime.

It is a super-2 number, since 2×1052861721451² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052861721398 and 1052861721407.

It is not a weakly prime, because it can be changed into another prime (1052861721491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526430860725 + 526430860726.

It is an arithmetic number, because the mean of its divisors is an integer number (526430860726).

Almost surely, 2^{1052861721451} is an apocalyptic number.

1052861721451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052861721451 is an equidigital number, since it uses as much as digits as its factorization.

1052861721451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 43.

The spelling of 1052861721451 in words is "one trillion, fifty-two billion, eight hundred sixty-one million, seven hundred twenty-one thousand, four hundred fifty-one".