137765525890 has 16 divisors (see below), whose sum is σ = 248191190208. Its totient is φ = 55058822896.

The previous prime is 137765525861. The next prime is 137765525903. The reversal of 137765525890 is 98525567731.

It is a happy 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, 5911222 + ... + 5934481.

It is an arithmetic number, because the mean of its divisors is an integer number (15511949388).

Almost surely, 2^137765525890 is an apocalyptic number.

137765525890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137765525890 is a deficient number, since it is larger than the sum of its proper divisors (110425664318).

137765525890 is a wasteful number, since it uses less digits than its factorization.

137765525890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11846873.

The product of its (nonzero) digits is 15876000, while the sum is 58.

The spelling of 137765525890 in words is "one hundred thirty-seven billion, seven hundred sixty-five million, five hundred twenty-five thousand, eight hundred ninety".