1490648327421 has 32 divisors (see below), whose sum is σ = 2231959728768. Its totient is φ = 876976035840.

The previous prime is 1490648327419. The next prime is 1490648327437. The reversal of 1490648327421 is 1247238460941.

It is not a de Polignac number, because 1490648327421 - 2¹ = 1490648327419 is a prime.

It is a super-2 number, since 2×1490648327421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490648327491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 881056 + ... + 1938441.

It is an arithmetic number, because the mean of its divisors is an integer number (69748741524).

Almost surely, 2^{1490648327421} is an apocalyptic number.

1490648327421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1490648327421 is a deficient number, since it is larger than the sum of its proper divisors (741311401347).

1490648327421 is a wasteful number, since it uses less digits than its factorization.

1490648327421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819981.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 1490648327421 in words is "one trillion, four hundred ninety billion, six hundred forty-eight million, three hundred twenty-seven thousand, four hundred twenty-one".