1201977004390 has 64 divisors (see below), whose sum is σ = 2374374461760. Its totient is φ = 436065710080.

The previous prime is 1201977004379. The next prime is 1201977004391. The reversal of 1201977004390 is 934007791021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201977004391) 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, 2334549 + ... + 2802511.

It is an arithmetic number, because the mean of its divisors is an integer number (37099600965).

Almost surely, 2^{1201977004390} is an apocalyptic number.

1201977004390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201977004390 is a deficient number, since it is larger than the sum of its proper divisors (1172397457370).

1201977004390 is a wasteful number, since it uses less digits than its factorization.

1201977004390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468537.

The product of its (nonzero) digits is 95256, while the sum is 43.

The spelling of 1201977004390 in words is "one trillion, two hundred one billion, nine hundred seventy-seven million, four thousand, three hundred ninety".