19451393877070 has 16 divisors (see below), whose sum is σ = 35141706433728. Its totient is φ = 7751847005280.

The previous prime is 19451393877011. The next prime is 19451393877119. The reversal of 19451393877070 is 7077839315491.

It is a junction number, because it is equal to n+sod(n) for n = 19451393876993 and 19451393877011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3588815349 + ... + 3588820768.

It is an arithmetic number, because the mean of its divisors is an integer number (2196356652108).

Almost surely, 2^{19451393877070} is an apocalyptic number.

19451393877070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19451393877070 is a deficient number, since it is larger than the sum of its proper divisors (15690312556658).

19451393877070 is a wasteful number, since it uses less digits than its factorization.

19451393877070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7177636395.

The product of its (nonzero) digits is 40007520, while the sum is 64.

The spelling of 19451393877070 in words is "nineteen trillion, four hundred fifty-one billion, three hundred ninety-three million, eight hundred seventy-seven thousand, seventy".