1948311093977 has 16 divisors (see below), whose sum is σ = 2099073346560. Its totient is φ = 1803080294400.

The previous prime is 1948311093917. The next prime is 1948311094007. The reversal of 1948311093977 is 7793901138491.

It is a cyclic number.

It is not a de Polignac number, because 1948311093977 - 2⁶ = 1948311093913 is a prime.

It is a super-2 number, since 2×1948311093977² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1948311093917) 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, 2890049 + ... + 3499857.

It is an arithmetic number, because the mean of its divisors is an integer number (131192084160).

Almost surely, 2^{1948311093977} is an apocalyptic number.

It is an amenable number.

1948311093977 is a deficient number, since it is larger than the sum of its proper divisors (150762252583).

1948311093977 is a wasteful number, since it uses less digits than its factorization.

1948311093977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614344.

The product of its (nonzero) digits is 10287648, while the sum is 62.

The spelling of 1948311093977 in words is "one trillion, nine hundred forty-eight billion, three hundred eleven million, ninety-three thousand, nine hundred seventy-seven".