901852619749 has 2 divisors, whose sum is σ = 901852619750. Its totient is φ = 901852619748.

The previous prime is 901852619743. The next prime is 901852619807. The reversal of 901852619749 is 947916258109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 884715191649 + 17137428100 = 940593^2 + 130910^2 .

It is a cyclic number.

It is not a de Polignac number, because 901852619749 - 2¹⁵ = 901852586981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (901852619743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450926309874 + 450926309875.

It is an arithmetic number, because the mean of its divisors is an integer number (450926309875).

Almost surely, 2^901852619749 is an apocalyptic number.

It is an amenable number.

901852619749 is a deficient number, since it is larger than the sum of its proper divisors (1).

901852619749 is an equidigital number, since it uses as much as digits as its factorization.

901852619749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 61.

The spelling of 901852619749 in words is "nine hundred one billion, eight hundred fifty-two million, six hundred nineteen thousand, seven hundred forty-nine".