1953739469490 has 32 divisors (see below), whose sum is σ = 4689391928256. Its totient is φ = 520950836160.

The previous prime is 1953739469477. The next prime is 1953739469497. The reversal of 1953739469490 is 949649373591.

It is not an unprimeable number, because it can be changed into a prime (1953739469497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2553772 + ... + 3229431.

It is an arithmetic number, because the mean of its divisors is an integer number (146543497758).

Almost surely, 2^{1953739469490} is an apocalyptic number.

1953739469490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1953739469490 is an abundant number, since it is smaller than the sum of its proper divisors (2735652458766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1953739469490 is a wasteful number, since it uses less digits than its factorization.

1953739469490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5794474.

The product of its (nonzero) digits is 198404640, while the sum is 69.

The spelling of 1953739469490 in words is "one trillion, nine hundred fifty-three billion, seven hundred thirty-nine million, four hundred sixty-nine thousand, four hundred ninety".