1377608198420 has 24 divisors (see below), whose sum is σ = 2992735053000. Its totient is φ = 532041786752.

The previous prime is 1377608198353. The next prime is 1377608198489. The reversal of 1377608198420 is 248918067731.

It can be written as a sum of positive squares in 4 ways, for example, as 59120949904 + 1318487248516 = 243148^2 + 1148254^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187592695 + ... + 1187593854.

It is an arithmetic number, because the mean of its divisors is an integer number (124697293875).

Almost surely, 2^{1377608198420} is an apocalyptic number.

1377608198420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377608198420 is an abundant number, since it is smaller than the sum of its proper divisors (1615126854580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1377608198420 is a wasteful number, since it uses less digits than its factorization.

1377608198420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375186587 (or 2375186585 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 1377608198420 in words is "one trillion, three hundred seventy-seven billion, six hundred eight million, one hundred ninety-eight thousand, four hundred twenty".