1990302429751 has 8 divisors (see below), whose sum is σ = 2011472488224. Its totient is φ = 1969161079200.

The previous prime is 1990302429737. The next prime is 1990302429769. The reversal of 1990302429751 is 1579242030991.

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 1990302429751 - 2¹³ = 1990302421559 is a prime.

It is a super-2 number, since 2×1990302429751² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990302423751) 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, 7037571 + ... + 7314916.

It is an arithmetic number, because the mean of its divisors is an integer number (251434061028).

Almost surely, 2^{1990302429751} is an apocalyptic number.

1990302429751 is a deficient number, since it is larger than the sum of its proper divisors (21170058473).

1990302429751 is a wasteful number, since it uses less digits than its factorization.

1990302429751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14353961.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 1990302429751 in words is "one trillion, nine hundred ninety billion, three hundred two million, four hundred twenty-nine thousand, seven hundred fifty-one".