1948857139346 has 32 divisors (see below), whose sum is σ = 3354924400128. Its totient is φ = 842059373760.

The previous prime is 1948857139343. The next prime is 1948857139357. The reversal of 1948857139346 is 6439317588491.

It is a super-2 number, since 2×1948857139346² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1948857139343) 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, 34641665 + ... + 34697876.

It is an arithmetic number, because the mean of its divisors is an integer number (104841387504).

Almost surely, 2^{1948857139346} is an apocalyptic number.

1948857139346 is a deficient number, since it is larger than the sum of its proper divisors (1406067260782).

1948857139346 is a wasteful number, since it uses less digits than its factorization.

1948857139346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69339626.

The product of its digits is 156764160, while the sum is 68.

The spelling of 1948857139346 in words is "one trillion, nine hundred forty-eight billion, eight hundred fifty-seven million, one hundred thirty-nine thousand, three hundred forty-six".