1955148490047 has 16 divisors (see below), whose sum is σ = 2722086627840. Its totient is φ = 1245899674272.

The previous prime is 1955148490027. The next prime is 1955148490063. The reversal of 1955148490047 is 7400948415591.

It is not a de Polignac number, because 1955148490047 - 2²⁷ = 1955014272319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955148490007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9691272 + ... + 9890957.

It is an arithmetic number, because the mean of its divisors is an integer number (170130414240).

Almost surely, 2^{1955148490047} is an apocalyptic number.

1955148490047 is a deficient number, since it is larger than the sum of its proper divisors (766938137793).

1955148490047 is a wasteful number, since it uses less digits than its factorization.

1955148490047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19583702.

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 1955148490047 in words is "one trillion, nine hundred fifty-five billion, one hundred forty-eight million, four hundred ninety thousand, forty-seven".